Clean Master (Speed Booster) APK

Version 7.4.9 - com.cleanmaster.mguard
Last updated: Thu, 09 Apr 2020 9:20:33 UTC
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Clean Master (Speed Booster) apk

APP Information

Download Version 7.4.9 (70494393)
Apk Size51.77 MB
App DeveloperKS Mobile
Malware CheckTRUSTED
Install on Android4.3.x and up
App Packagecom.cleanmaster.mguard.apk

Download Clean Master (Speed Booster) 7.4.9 APK

App Description

Clean Master (Speed Booster) is cleanmaster,mguard,tools,clean,master,(speed,booster), content rating is Low Maturity (PEGI-12). This app is rated 4.37 by 1780 users who are using this app. To know more about the company/developer, visit KS Mobile website who developed it. com.cleanmaster.mguard.apk apps can be downloaded and installed on Android 4.3.x and higher Android devices. The Latest Version of 7.4.9 Available for download. Download the app using your favorite browser and click Install to install the application. Please note that we provide both basic and pure APK files and faster download speeds than APK Mirror. This app APK has been downloaded 15604057+ times on store. You can also download com.cleanmaster.mguard APK and run it with the popular Android Emulators.

The World's Most Trusted Optimizer, Clean Master, Helps Clean Up Over 400 Million Phones!
When Do You Need Us?
CM is perfect for you if your phone has become laggy or runs out of battery easily, if it's stopped playing games smoothly, if it becomes too hot to hold, or if you want to free up some space to store more photos or songs.
What We Can Do For You
We make it easy to free up more storage from your phone and SD card, boost games and device memory, enhance speed & extend battery life, stop overheating and protect your device against malicious apps and vulnerabilities.

Highlights of Clean Master - Phone Booster & Antivirus
☆ Accurate: The junk-creating behavior of millions of apps has been analyzed so that Clean Master can efficiently hone in on its targets (cache and residual files) with perfect accuracy.
☆ Fast & Intuitive: Simple to use, super-fast and smooth UI, plus cool transition effects
☆ Ranked #1 by AV-TEST for the seventh time! A professional quality antivirus service scans devices in just 8 seconds, 500% faster than other paid antivirus apps.
Features of Clean Master- Phone Booster & Antivirus
Cool off your device by finding and stopping the apps that are causing it to overheat and make your battery last longer!
Delete cache and residual files to reclaim storage, boost speed and improve the performance of your device and SD card.
Boost your games and apps, free up memory (RAM), speed up your device and save more battery. Our 1 Tap Boost and Game Boost features make it easy to optimize directly from your homescreen.
Scan the system, pre-installed and user-installed apps to keep your device safe from viruses, trojans, vulnerabilities, adware and spyware. Keep your privacy safe by scrubbing personal info from your device.
Uninstall unwanted apps or bloatware and back up important ones. Some rooted devices will be able to move apps to the SD card as well as uninstall pre-installed and system apps. Our own Picks section lets you find useful apps that match your interests.
Supported languages
Arabic, Bulgarian, Chinese, Croatian, Czech, Dutch, English, French, German, Greek, Hebrew, Hungarian, Indonesian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Romanian, Russian, Serbian, Slovak, Spanish, Thai, Turkish, Ukrainian, Vietnamese, Malay
Stay connected!
Join our community:
Requested permissions
Camera permission: This permission is used for Clean Master's flashlight feature, which uses the camera flash from the device's rear camera. Clean Master does not use the device's microphone at all - Android lists both camera and microphone permissions together, even if only one is used.
Help fight against deceptive ads
Cheetah Mobile (formerly KS Mobile) is committed to fighting against misleading downloads. You can find our full official policy on this matter here: http:www.cmcm.comaboutpromotion-policy.html
If you come across one of these ads, you can help us to take them down. Please visit the following URL and fill out the requested information - http:feedback.ksmobile.comReportFeedbackindex?app_id=7 . The more detail you can give the better. Thanks for helping us improve the Android ecosystem! 

App ChangeLog

  • 5.11.6
    1. Added support for creating CM accounts with Google accounts
    2. Added background cleaning - no need to wait for cleaning to finish!
    3. Optimized the interface of Download Manager
    4. Optimized some details in Homescreen Show

App Screens

Clean Master (Speed Booster) App Screen 1Clean Master (Speed Booster) App Screen 2Clean Master (Speed Booster) App Screen 3Clean Master (Speed Booster) App Screen 4Clean Master (Speed Booster) App Screen 5Clean Master (Speed Booster) App Screen 6


Apk scan results

Apk Scaned By TotalVirus Antivirus,com.cleanmaster.mguard.apk Was Pure And Safe.

Scan Stats:confirmed-timeout:0|failure:0|harmless:0|malicious:0|suspicious:0|timeout:3|type-unsupported:10|undetected:62|
File type:Android
Magic:Zip archive data, at least v2.0 to extract
File size:54284567
Uncompressed Size:35977252
Contained Files	:7112
Contained Files By Type:dex:8,png:61,txt:1,xml:924,


requires following permissions on your android device.

approximate location (network-based)
Allows the app to get your approximate location. This location is derived by location services using network location sources such as cell towers and Wi-Fi. These location services must be turned on and available to your device for the app to use them. Apps may use this to determine approximately where you are.

precise location (GPS and network-based)
Allows the app to get your precise location using the Global Positioning System (GPS) or network location sources such as cell towers and Wi-Fi. These location services must be turned on and available to your device for the app to use them. Apps may use this to determine where you are, and may consume additional battery power.

view network connections
Allows the app to view information about network connections such as which networks exist and are connected.

view Wi-Fi connections
Allows the app to view information about Wi-Fi networking, such as whether Wi-Fi is enabled and name of connected Wi-Fi devices.

read battery statistics
Allows an application to read the current low-level battery use data. May allow the application to find out detailed information about which apps you use.

send sticky broadcast
Allows the app to send sticky broadcasts, which remain after the broadcast ends. Excessive use may make the phone slow or unstable by causing it to use too much memory.

take pictures and videos
Allows the app to take pictures and videos with the camera. This permission allows the app to use the camera at any time without your confirmation.

change network connectivity
Allows the app to change the state of network connectivity.

connect and disconnect from Wi-Fi
Allows the app to connect to and disconnect from Wi-Fi access points and to make changes to device configuration for Wi-Fi networks.

delete all app cache data
Allows the app to free phone storage by deleting files in the cache directories of other applications. This may cause other applications to start up more slowly as they need to re-retrieve their data.

disable your screen lock
Allows the app to disable the keylock and any associated password security. For example, the phone disables the keylock when receiving an incoming phone call, then re-enables the keylock when the call is finished.

expand/collapse status bar
Allows the app to expand or collapse the status bar.

Allows access to the list of accounts in the Accounts Service.

find accounts on the device
Allows the app to get the list of accounts known by the phone. This may include any accounts created by applications you have installed.

measure app storage space
Allows the app to retrieve its code, data, and cache sizes

retrieve running apps
Allows the app to retrieve information about currently and recently running tasks. This may allow the app to discover information about which applications are used on the device.

full network access
Allows the app to create network sockets and use custom network protocols. The browser and other applications provide means to send data to the internet, so this permission is not required to send data to the internet.

change your audio settings
Allows the app to modify global audio settings such as volume and which speaker is used for output.

access SD Card filesystem
Allows the app to mount and unmount filesystems for removable storage.

read Usage data
Provides access to device usage history and statistics. Usage data is aggregated into time intervals: days, weeks, months, and years.

read the contents of your SD card
Allows the app to read the contents of your SD card.

read phone state
Allows read only access to phone state, including the phone number of the device, current cellular network information, the status of any ongoing calls, and a list of any PhoneAccounts registered on the device.

reorder running apps
Allows the app to move tasks to the foreground and background. The app may do this without your input.

close other apps
Allows the app to end background processes of other apps. This may cause other apps to stop running.

set wallpaper
Allows the app to set the system wallpaper.

draw over other apps
Allows the app to draw on top of other applications or parts of the user interface. They may interfere with your use of the interface in any application, or change what you think you are seeing in other applications.

control vibration
Allows the app to control the vibrator.

prevent phone from sleeping
Allows the app to prevent the phone from going to sleep.

modify or delete the contents of your SD card
Allows the app to write to the SD card.

modify system settings
Allows the app to modify the system's settings data. Malicious apps may corrupt your system's configuration.

set an alarm
Allows the app to set an alarm in an installed alarm clock app. Some alarm clock apps may not implement this feature.

read your Web bookmarks and history
Allows the app to read the history of all URLs that the Browser has visited, and all of the Browser's bookmarks. Note: this permission may not be enforced by third-party browsers or other applications with web browsing capabilities.

write web bookmarks and history
Allows the app to modify the Browser's history or bookmarks stored on your phone. This may allow the app to erase or modify Browser data. Note: this permission may note be enforced by third-party browsers or other applications with web browsing capabilities.

install shortcuts
Allows an application to add Homescreen shortcuts without user intervention.

read Home settings and shortcuts
Allows the app to read the settings and shortcuts in Home.

uninstall shortcuts
Allows the application to remove Homescreen shortcuts without user intervention.

write Home settings and shortcuts
Allows the app to change the settings and shortcuts in Home.

In-App billing
In-app Billing on Google Play provides a straightforward, simple interface for sending In-app Billing requests and managing In-app Billing transactions using Google Play.

receive data from Internet
Allows apps to accept cloud to device messages sent by the app's service. Using this service will incur data usage. Malicious apps could cause excess data usage.

activity recognition
Allows an app to receive periodic updates of your activity level from Google, for example, if you are walking, driving, cycling, or stationary.


Certificate Issuer:C:None, CN:None, O:Cheetah Mobile, OU:Catappult
Certificate Subject:C:None, CN:None, O:Cheetah Mobile, OU:Catappult








Interesting Strings


Older Versions

More Android Apps to Consider

Google Play Reviews

  1. Keith Roden-avatar

    Keith Roden


    If you've got the Android One os, don't bother with this as it will clash heavily with the inbuilt google/android system. It lags more often than not and will crash everytime. On recent occasions, it has sometimes taken five attempts to even open, or up to five minutes stuck on one screen. i had the subscription version, which is also a waste of money. There's literally no point in the "premium" version.

  2. Kelsey Walls-avatar

    Kelsey Walls


    free download I've been using this for years. And it's pretty convenient. Especially being able to uninstall a bunch of apps at once. But lately it has been opening on its own to do stuff when I unlock my phone and slowing my phone waaaaaaay down. I didnt realize how much until i uninstalled it. Opening anything on my phone started feeling like the dial up days. Plus it's gotten more and more ad heavy. I hate to, but i need to go elsewhere so that my phone can function again.

  3. David Allen-avatar

    David Allen


    apk free download I was having terrible problems with my phone. I wasn't receiving any notifications, even though all phone settings were correct. Basically I was missing a bunch of very important things. Thought it was a Verizon problem, so I spent hours on the phone with them. I also spent hours upon hours online reading threads, blogs, watching videos, etc on how to get notifications/badges back. Called Samsung, and they had me uninstall this app. My phone was back to normal immediately. Do not install!

  4. Gold Bug-avatar

    Gold Bug


    apk I like their features. Seems to do exactly what it says and my tablet runs a little faster. However, ads have become a real annoyance lately. They've included a video ad for some game which you can't close until after a couple seconds pass. And they play it constantly. That was the last draw. Not worth the frustration and not to mention extra memory it's using to run these ads, right after you just cleared it. Dial it back and I might try this app again.

  5. A Google user-avatar

    A Google user


    app download I really like this app, it has no annoying ads, I've had it for a year now. works better than the paid ones I've had. let's me know when my junk files and cache build up. I would reccomend. I usually don't comment unless I've used the app for awhile. if you have to rate to use it, i get rid of it. this does not do that, it will pop up do you want to rate us, i ignore till i have tested it. thank you cheetah, another great app!

  6. J Lessington-avatar

    J Lessington


    install This is a decent app and it does the majority of what it says it will do. However, I have had problems in the past when I go to individual apps on my phone, it doesn't always lock or it locks after over had 5 seconds or more in the app itself. Sometimes this could really be a problem. I understand the ads, I don't really for them being so plentiful, but I do understand their purpose...

  7. Bill Wiens-avatar

    Bill Wiens


    clean master wifi speed booster I've had the app for over a year and thought it was the greatest stuff but I get swamped with advertisements and lately- out of the country calls who know know exactly what I'm doing, from my searches it's obvious that they've got a direct line to my phone through key readers. a hacker buddy told me what was going on, they are allowing hackers to go into my personal life and spam me to death. now I need a new phone number because they've ruined my fifteen-year-old phone number. delete this app!

  8. Sandy Lucius-avatar

    Sandy Lucius


    clean master vs du speed booster Don't download it drains your phone it prevents me from playing other games. It Makes my phone crash often. Cool down function is a hoax. They have poor management skills because they don't respond to any of the contact methods provided. Further more they don't pay out as claimed. It's been over 45 days and I have yet to receive funds owed or even a simple response to any of my messages. If I could give zero stars I would because they don't deserve one. Swindling people for time and Facebook marketing sad sad sad 😢.

  9. Garry Garrett-avatar

    Garry Garrett


    clean master ou du speed booster It used to work great, but with some of the "improvements", am considering uninstalling. Ads have become intrusive (full screen ads pop up and steal the focus at some random interval after unlocking). You used to be able to configure what it cleans - I have .apk files I keep on my phone on purpose, I don't ever want it to clean up "old" APKs, but if you uninstall an app, and it offers to clean up after that app, it cleans up everything, including APKs. App lock is too easily bypassed.

  10. A Google user-avatar

    A Google user


    In version 6.14.8 I noticed that the photo encryption functionality caused a very slight blurriness when later decrypted. For a picture of most things, no problem, but for a picture of fine mathematics, NOT GOOD; as such causes a loss of math detail--yuch! There is no justification for a encryption algorithm to be lossy AT ALL; Otherwise, I love this app, it is wonderful in its many functions! I installed the latest version, IT IS FIXED! THANK YOU; NOW I CAN SEE MY MATH.😀

  11. Ben Linn-avatar

    Ben Linn


    Would be great, but the ads are overkill, doesn't make me want to purchase to upgrade even if it's a top market cleaner. Should let you try out and run at full potential for a lengthy period to determine if you want the app and find functionality for it. This way you can determine if you would like to purchase, after all those ads I didn't want to purchase I just wanted off my phone and nothing to do with them or anything they advertised.

  12. Mike Baldassano-avatar

    Mike Baldassano


    I've used this app literally for years with no issues. 2 days ago for some unknown reason, the app ran through 5.79 GB of my 6 GB mobile data plan in a single day?? I've since turned off background data via mobile but it's always been on previously without issue. WTH? Now I'm having to jump through hoops with Verizon to get enough data to last the rest of the month. UPDATE: How is this an answer?? "Developer response: Hi, Thanks for using Clean Master. We appreciate you chose Clean Master to clean and protect your device. If you have any other questions, please feel free to tell us via feedback. We will do our best to help you. And keep optimizing Clean Master. Thank you"

  13. Matthew Bowen-avatar

    Matthew Bowen


    I've used this app for a long time and it was always a good way to keep my phone in order, but recently, the amount of ads is like a virus. Not only do they pop up with every action I do in the app itself, but randomly throughout the day no matter what I'm doing. Playing a game? Ad pops up. Watching a video? Ad pops up. Watching Netflix? Ad pops up. This is terrorism.

  14. A Google user-avatar

    A Google user


    The thing with the screen saver? Yeah, no. I disabled it and it still shows up and its really annoying. I have to always unlock to do even the LITTLEST things, it made me want to throw my phone. So fix that. It was also a suggestion when i disabled it, that I had to unlock too many times and it STILL showed up. I'm only keeping the app because the rest of the stuff is helpful.

  15. A Google user-avatar

    A Google user


    I have used this app for a few years. But the recent intrusive ads that are sometimes impossible to immediately get rid of (no "X" on the screen anywhere as well as making the home buttons disappear, which means I actually had to look at the stupid ad to find it) which makes me resort to just restarting the phone. It's really not worth the trouble anymore. I'll find something else.

  16. Heidi Reeder-avatar

    Heidi Reeder


    I have been using this app for a few years now. It had been working really well until a couple months ago. The CPU cooler no longer works. It notifies me that the CPU is overheating, but it no longer cools it. When I click on CPU cooler, it tells me what the current temperature is, then just turns into a checkmark without cooling the device. If this issue were resolved, I would give it five stars.

  17. Jennifer Leavitt-avatar

    Jennifer Leavitt


    I had never used an app like this until it came pre-installed in a government phone. I quickly learned the value of having it, so I was worried when switching phones and carriers (I thought this app might be exclusive to Qlink). I was relieved to see it available in Google Play for Android phones. Installed immediately. I use it all the time. Adds are annoying, but I have the free version, so I'm just grateful to have all the features on this app.

  18. Nicole Wildman-avatar

    Nicole Wildman


    This app could be great, however the constant pop ups, the advertisements cluttering it, the constant notifications that continued even after I turned them off, made this app very frustrating to use. I have had this phone (Note 9) 3 days, the app for 2, and it created such a problem I almost returned it. I may be willing to try it again in the future but only if all the bloat has been streamlined.

  19. Emma lou_xxx-avatar

    Emma lou_xxx


    This app was good at first. However only 3 days in usage, it didn't help my storage. In fact, it made it worse. I went on my instagram, and with the safety mode, it made me log out. I don't even remember my password. It gave as little info and it didn't tell me it was doing that. My best friends birthday is in a few days, and as I'm in a different country currently, I cant give her her birthday present, that I have worked days on. I've instantly deleted this app and won't get it again.

  20. Me Myself-avatar

    Me Myself


    Works good. Just wish I could control apps a little more in detail. Like not allowing them to have background data permissions, unless I'm using it. I have turned background data off for stuff like webcam and weather, that were already on the phone from the factory, but I did be able to stop the apps from running completely if I can't uninstall it.

  21. kim p.-avatar

    kim p.


    I used this app for a number of years with little issue. Then, about a month or so ago, my phone started acting up, lagged, froze, keyboard would freeze and lag, black screen, white screens, etc. Then about a week ago, my phone started occasionally restarting itself and was also heating up. Went through a lot of things and nothing helped. Then I remembered that I had updated Clean Master. Sorry guys, but guess this app was the culprit. I uninstalled and now my phone is working right again.

  22. edward blocker-avatar

    edward blocker


    One annoying constant of this application is that nearly every time (not always) the antivirus is launched, I'm informed in yellow print that the existing antivirus is out of date, accompanied with a button marked "Update". I then push the button and within a few seconds the yellow print changes to blue and reads "Updated". It then continues as normal, running and finishing the antivirus check. This happens about every third time I run the antivirus. That's got'ta be "way too often" to be right.

  23. Ahmed Zia-avatar

    Ahmed Zia


    This used to be one of the best apps for cleaning your mobile device but as of recently it has started giving random pop ups while using other apps. You can't turn them off in the settings and they're annoying as hell. It keeps saying to "boost RAM" or notifying about things like that while using YouTube and it's become unbearable. It also gives a pop-up for when your battery is low or when it's full, something all mobile devices already do on their own. Honestly this app is more trouble than it's worth.

  24. Saurabhi De-avatar

    Saurabhi De


    The app is ok. There are much lighter apps that do the same thing. This was just a little more user friendly. It takes up too much space so is not suitable for low memory phones. Used to work fine in my Zenfone 2. But the Battery Saver now takes AGES on my Asus Max Pro! Really irritating! Not to mention WAY too many ads. I understand the need for ads, but this is absurd.

  25. Kathryn Anderson-avatar

    Kathryn Anderson


    This app is a very good app, it cleans junk files well and does a good job of securing the device for free (with ads), however, what's annoying is with the latest version of the app, it doesn't matter what I do, it keeps adding a shortcut to my home screen (almost every day I have to delete this short cut). That should not be happening. That is very annoying.

  26. Wander Stribos-avatar

    Wander Stribos


    Most of the functions it has work really well. (Battery boosting, junk cleaning, etc.) However, the app constantly barrages you with push notifications, and often for functions you don't even want to use either. (For example, I'd prefer not uninstalling a 7 mb app I haven't used it in a week to save space, even though I haven't even used half of my storage yet.) Because of this, it is more advisable to download the app once in a while, run its various cleaners, and then uninstall it again.

  27. Marcus Everson-avatar

    Marcus Everson


    It's a good app.... when it doesnt want to delete all your photos thinking its junk, or important logs you may have been wanting to keep in note apps. As long as you make sure those things arnt listed in the cleaning process, you should be fine. But there's a reason I use this as a "temporary App" wich means ot doesn't stay on my phone. I just download it when ever I need and then uninstall it after word. I've been doing this for years and it has made good progress. I cannot deny that.

  28. Artdog-avatar



    Been using this for years on various phones. Phones always run smoother after a cleaning. In my opinion, better than the cleaners that actually come with the phones. Helps spots overheating pretty fast and helps cool the phone down. Anti-virus scan is fairly quick and runs deep into the system. Ads are becoming a little too intrusive though. Often hijacking my phone for up to 30 seconds. Would be nice if you could tone it down a little more.

  29. Scott Bloomquist-avatar

    Scott Bloomquist


    The cleaning of junk files is redundant, easily done without an app. I only use it when my phone is overheating, that seems to work OK. I don't like the layer upon layer of ads you have navigate. The newest thing is now I get a clean master pop up when I swipe my screen on. I'm one more pop up away from uninstalling this thing.

  30. nici Robinson-avatar

    nici Robinson


    The cleaning part of the app is alright. But the coin part of the app is very frustrating. I earned coins and submitted them for payment. After a month of waiting, my submission of coins failed and now I have to submit them again and wait who knows how long, even though the app says 7-10 days to be processed. I have another submission that was done two weeks ago and hasn't been processed. It seems like a scam. They also greatly decreased the amount of coins to be earned. You could get $2.45 a day by Facebook shares, now you can get $.008 a day! Very dissatisfied!

  31. Mark Horvatich-avatar

    Mark Horvatich


    I like what the app can do, but I am uninstalling it anyway. There are just way too many ads, they become just way too tiresome way to click quickly. the app appears to be a good one but it's hard to tell through all the ads trying to constantly sell me something. If there was a premium version that I can buy outright without ads I probably would but instead because there isn't I will just uninstall this one and call it good.

  32. mike spencer-avatar

    mike spencer


    I've used this program sense I had a 486 computer. It has been all I needed to keep my computer's working at thier peek of performance. I have added this program in all the computer's I created. Never run a computer without it. I've refered this program to hundreds of my family, friends and customers. Thank you for providing a service that actually works.

  33. LNiiharika Shankkhwar-avatar

    LNiiharika Shankkhwar


    I am using this app for years till now, but this is first time I'm writing a review which is a rarely I do. Ever since I have installed this app, it has increased the life of all my smart phones. it keeps my phone clean,up and running all the time. I also helps me save battery life and also in the last minutes before battery dies. I would recommend this app to everyone. sometimes it forces you to use the app in between, and it's okay with me as it's for my own good. 👍👍 keep Smiling and loving.

  34. Steve Y-avatar

    Steve Y


    I was a user for many years. After the new update I noticed that the in your face Ads got worse. Yes, I understand you now have the option to pay for Ad free, but I don't mind Ads, but everything you do is an Ad. I noticed that THIS app started to drain your data. The Ads CONSUME over 1 gig of data in 3 days. To test my Theory. I took screen shots of my data in the morning and in the evening. I noticed every day this app CONSUME the most data. Try it yourself if you don't believe me. SCREEN SHOT.

  35. Karan Riar-avatar

    Karan Riar


    Really like the app,, work great in clearing junk files, bringing down device's temperature when getting hot, eliminating viruses. But as I use blackberry key2 I always check my dtek app by BlackBerry which gives all info on which app tried to access your camera, mic, location, personal info, photos, videos and I can instantly block that app from getting into my device, but this app never tried to access photos or videos other than regular info which helps it operates.

  36. Dominic Rebustillo-avatar

    Dominic Rebustillo


    I hate it, it keeps showing pop up windows especially in "game boost" and lots of ads even though the permissions for them are turned off!!! It's very ANNOYING Also it is very clunky, the app itself is big and contains a lot of things that I really don't need like game boost, and antivirus can you give us at least the option to download them sepparately?

  37. A Google user-avatar

    A Google user


    I've been using this app for years, and really liked it. I even recommended to friends to use. Over the last several months I began getting ad pop up's on my phone when trying to read my texts or make a phone call. I find it annoying, but understand and accept getting ad pop up's while in an app or playing a game (the app developer's need to make money) but I should never be subjected to ads while trying to read my texts, make a phone call or look at my photos, it's like they've hijacked my phone and began sending ads all the time! It was driving me nuts. I finally had to delete the app and the ads pop up's finally stopped.

  38. Sabrina Sullivan-avatar

    Sabrina Sullivan


    So far it does what it says. I scan my phone and SD card daily and it also does it daily by itself at around 7:30. It cleaned about 4GB of memory from junk files and helped clear sticky cache that wouldn't go away. I'm rating 4 stars because I need to have it a bit longer for a fair assessment. No doubt it will be a five star rating in the future. :)

  39. Just Stuff-avatar

    Just Stuff


    Can work well, but is very annoying. Clean master is an overall okay app. It can clear up storage, it seems like it boosts your phone speed (but i haven't been able to prove that), and generally gets the job done. My main complaints are that there are ads everywhere. Want to boost battery life? Here's ads! Want to clear some storage space? More ads! And this app keeps running over other apps, spamming notifications, trying to "boost my phone" when I've just unlocked my phone to the home screen.

  40. Justin G_40-avatar

    Justin G_40


    I like CM Safe Browser but its a nuisance and I don't use it much anymore. Ads keeps popping up every 5 seconds or so trying to browse the internet 😠. I would love to pay a one-off for removing ads and thats it.... but it and yearly, quarterly and monthly payment whatever ( I won't bother ). If CM wants money from people who wants ads removing thats just stupid way of doing it. Money money money. Why money is the one thing so important on peoples mind. Money is bit of paper with print on 🤣

  41. Clinton Boucheix-avatar

    Clinton Boucheix


    Up until a recent update, I've been pretty happy with the app. Until I started seeing this prize wheel in my lock screen while charging. I'm having problems swiping to unlock my phone and have to plug and unplug my cable just to get past it. I don't know what CM is up to but this prize wheel and the credits you can accumulate is not what I look for in a rear cleaning app.

  42. Charles Bedell-avatar

    Charles Bedell


    I like this app, but the only issue I have is from when you replace the phone. If the requires that I'm signed in under username and password, and it's required to be connected to the Internet for the app to even function... why can I not retrieve my old balance of coins. My last phone broke and was replaced, but when I signed on on the new phone, same username and password: I have to start collection 1000ths of a cent all over again... I was almost at $9.00 on my other phone.... that's months of work/time that is now gone... please find a way to transfer and I will update my review

  43. Robin Jacobs-avatar

    Robin Jacobs


    When first launching the app you get asked to immediately agree to tracking, and told you can disable this by going into settings. If you do go into settings and disable this, it'll just immediately ask you again and otherwise not allow you to use the app at all. To make matters worse the pop-up is labeled "We value your privacy". You obviously don't. This is not GDPR compliant and I genuinely hope companies like this one get rounded up.

  44. Pouya Sanaei-avatar

    Pouya Sanaei


    one star seems too much for you, it is straight up a scam for ads, uneffective in every task, if you don't believe me install it, then check your RAM status in setting, run the RAM booster and then check it again, there will be no difference, also do the same for storage cleaner you see the same result, Android users don't even need RAM boosters the system automatically does it. Don't fall for scams like this, it seems free but they make tons of money from ads

  45. Tammy McMullen-avatar

    Tammy McMullen


    Simple to use. Best cleaning/antivirus app out there. Fixes slow running devices instantly. Easy to pick & choose what section you want to use. From cooling down your device, to optimizing battery, to cleaning junk & notifications, to checking for viruses. Phone boost is excellent, lets you know exactly how much RAM is used and cleared. If you're like me & forget to clean up your device, it has a function to set up times, for each section, for automatic cleanings. Two 👍's.

  46. Clinton Dressen-avatar

    Clinton Dressen


    its a good app that keeps up to date... but the adds are pretty annoying as well as having to install separate programs to do other tasks that cm advises me to use i only have virus scan as a sister app because... virus'... viruses... viri...virus's??? meece, mice? anyway... i feel that they should at least create a virus and cleaning tool in one app which will save ram and mem. i get that phones are faster and higher capacity, but apps req. more and more. done rambling. i call a royalty%🤣

  47. A Google user-avatar

    A Google user


    I just started using it and so far so good. I assume the advertising will start up and hopefully no interruptions. I used dfndr app before this and it was too full of ads, obtrusive, and Beyond suspicious in performance and permissions. That will be the big test for Clean Master. four stars until I can give them five after I see what they do. so far really great. now I have been using it for two weeks and I really like it. very smooth and it doesn't interrupt you all the time. five stars.

  48. punderous-avatar



    With a number of features, this appeared to be a potentially good app, but the forced play of videos is a nasty inconvenience for users who need to conserve bandwidth, and a suspicious image with rapidly flashing text accompanied permission to access the device when I tried to start one of the features. All of this left a foul taste in my mouth after a lengthy download.

  49. Bobby Gale-avatar

    Bobby Gale


    WAY TOO MANY ADDS!!! OMG it use to be awesome until the adds took over. Now I have adds popping up on my phone even when I'm NOT using the app. I want to make a phone call? I have to see an add. I want to go to my Facebook, and there is another add. This app takes over your phone. It's one thing to get paid to use an app it's another thing to get raped by an app by adds and that's exactly what this app has done.

  50. Gail Swearngin-avatar

    Gail Swearngin


    I swear to God I have had more problems with my phone since I installed this app than I did without it. I have a galaxy s7 edge. The amount of ads are ridiculous. I mean I'm use to having to put up with ads that normally frequent with apps that are free. But this is way over the top. My phone lagged horribly like NEVER before. I started getting notifications every hour sometimes more that it needed to have junk removed etc. And if I ignored it my phone would lag even more to the point of slowing my messaging texts like it couldn't keep up with the typing. And I'm no speed typist either. It's like it created more junk on my phone than I had without it. The only reason I installed it was because I wanted an additional antivirus app on my phone for added protection for when I am using tor and on the deep web. Needless to say this app created more problems and did more harm than good on my phone. No thankyou.

  51. A Google user-avatar

    A Google user


    this app was great, I've used it for years. but now the developers have changed it in the last update where it automatically opens when u wake your phone. its extremely irritating to open your phone for an intended purpose only to watch this app launch and have to wait several seconds to close it so u can do what u intended. ****updated --- have they stopped the app from launching randomly when you wake your phone yet? I'd like to reinstall it but not till that's fixed

  52. Amie Black-avatar

    Amie Black


    I absolutely can't stand this app especially because of the popping up at the worst of times. This app has enraged me for the last time. I was trying to pay bills and it kept popping and creating problems even causing a payment to accidently be canceled because it again got in the way at terrible time. I AM DONE WITH CLEAN MASTER!!! I will get a different one. DELETED!!!

  53. Todd Hunter-avatar

    Todd Hunter


    Opens Full Screen Video Advertisements there is no way to exit until complete. Then when it's done it is deceptive. You touch the "x" to close the add, but instead it opens a SECOND Video Advertisements that you also cannot exit until it finishes. I won't say the tool doesn't work, but cleaning up RAM and Cache files should not CAUSE FRUSTRATION! Especially when there are other apps that do the same without the headache.

  54. Sydney Miller-avatar

    Sydney Miller


    This app used to work really well in keeping my phone running properly. Now I'm just bombarded with annoying ads and most of the junk its cleaning is from itself. Plus, it doesn't do the CPU cooler properly anymore. Also, what is up with the coins thing? I just need my phone cleaned up, not some "make money playing a game!" scam.

  55. Allie22-avatar



    I used this on previous versions of my Damsung phones with no problem. Decided a few days ago to add it to my Samsung 10 that I bought last fall. Can only describe the results as a shitshow. It arbitrarily decided to turn off programs that I actually use because they were 'too old'. It deleted entire programs, including my samsung notes, which was full of my notes! That I wanted! Turned off notifications from my ring cameras. Made it impossible to send or receive pictures. I'm still trying to fx

  56. Christian Roblox Server-avatar

    Christian Roblox Server


    It used to be a good app for mid grade and high end phones alike. But the file cleaning app just produces a RNG number to make you think there junk files regardless if there are or aren't any. The battery saver does not hibernate apps at all as they pop back up in the CPU usage after 2 minutes. the app has become a common ad peddler to deceive you into thinking your phone is full of junk when it's not just to increase the chance you see the ads. I have seen little to no improvement IN battery life and performance after "optimizing" I have gone to GREENIFY after uninstalling this because it actually works. My former 5 hour battery life (with clean master) has now reached 9 hours because of Greenify.

  57. YC Tang-avatar

    YC Tang


    Clean master leaves ADS in my phone!!! I downloaded CM yesterday just to do a major clean up, and today my phone starting to see ads overlaying my every app!!! Whenever I am using an app, the ads popup and blocking the view! Annoying! This is the second chance I trust CM and I won't give it another chance again. So regret of downloading it! Anyone had the same issue as I am?

  58. Itamar Elinav-avatar

    Itamar Elinav


    This is the most important comment you'll see here. I clearly have a virus and it sends me ads out of nowhere and I can't trace the virus so I downloaded this app. I run an antivirus scan... "No threats detected" and a second after I get another ten ads spam out of the virus. So I run the 'deep' scan and again "no threats detected" this cleaner is shit and you shouldn't download this shit.

  59. heuv elho-avatar

    heuv elho


    This used to be a great app, I've had it for years. Now I am uninstalling it. At first, it wad just the commercials that got a bit ridiculous, but it was tolerable. Now, we have to turn on every permission, including app usage data so they can track and sell what apps we use when, and allow Clean Master access to our notification settings. This is unacceptable and unnecessary for Clean Master to do its job. You used to be great. Way to sell out.

  60. Mr. Joy Japanese and Chinese-avatar

    Mr. Joy Japanese and Chinese


    I was hoping that if I reinstalled this on my new phone then I would be able to access pictures stored in my private files from my old phone but I have logged in with the same account and found no such option. Now all of those photos are inaccessible as my old phone has an unusable screen. If there is a way to recover my old private photos I would appreciate knowing! Thank you!

  61. Cindy Childs-avatar

    Cindy Childs


    while I've had this app installed it's great at clearing junk and opening up storage on my phone. however it froze my screen constantly. sometimes more than twice a day. the only thing I can do to correct it was to take out the battery wait a moment them out it back in and wait for the phone to go completely on.too much time out of my day wasted.

  62. Joshua T-avatar

    Joshua T


    Not going to install again until it stops causing instability with devices. This app alone was causing me to losing connection to my Sprint Service and I could not, for the love of god, figure out why I kept disconnecting from my service until a Sprint clerk told me that these apps cause that happen. After deleting this app, my phone no longer loses connection.

  63. Monika Magdalena S.-avatar

    Monika Magdalena S.


    So efficient and effective! Layout and graphics are nice and easy to read through and search for what you want. Working very fast and it's really easy to understand. Great job guys! 😉 P.s I know that some people complain about disruptive ads but I don't find them as annoying as in other apps. In the end of the day thanks to them this app is free

  64. Onction Elisee Dossou Sognon-avatar

    Onction Elisee Dossou Sognon


    An amazing cleaning app that saved my phone in so many ways including my storage. Like most of us, I do a lot of things with my phone that I wasn't paying much attention to my storage till the day I ran out. I couldn't do anything on my phone I had to delete a bunch of photos and files until I had enought space to install this cleaning app. Since then, my phone's storage has been freed and now my phone works better than ever faster too. Thanks for creating this wonderful app It deserves 5 stars.

  65. Christine Johnston-avatar

    Christine Johnston


    I've used this app for years and it used to work. Now it seems like it acts like it's working. It isnt cleaning anything or killing tasks, it says it does it, but when u close the app and come back the 2GB it needs to clean is still there. All the tasks were never shut. I'm deleting this and finding something different. I honestly think it's just searching through my data for information

  66. Susan Wood-avatar

    Susan Wood


    Would have been 4 or 5 stars if not for the pop ups. all of a sudden when charging my phone there are pop-ups telling me how much battery there is and pop-ups to try to get me to upgrade and pay for clean master. The whole battery thing is annoying especially when using wavs in my car and charging at the same time. The pop-ups dont allow me to see the map. I may just have to uninstall the app.

  67. myhumorbad-avatar



    I noticed that in one of this app's features, it wants to delete a Clean Master Lite APK. It was odd as to why would you delete your own app and why is it even installed. So I thought it purposely installed, but it started to show a lot of ads that draw over other apps and it's so annoying. This APK is nothing but ads. I tried deleting it but it kept on installing itself back, I tried deleting this app but it didn't work! This wasn't here before I downloaded this app. Please fix.

  68. A Google user-avatar

    A Google user


    After the update since I brought my phone with this application. My phone starts to lagging, freezing and restarting. Also it's heating when I am using it then sometimes it is not working properly. When I am cleaning the notification, it takes à minutes before it works. The new update became more useless and it is very messed! Please put together the 'BOOST, COOLING DOWN, HIBERNATING, CLEANING JUNK AND BOOSTING IN ONE ICON! Also will you give us an update which we can see the temperature of our phones?!

  69. Edward-avatar



    Newsflash. Not everyone wants all these shortcuts on the home page. Get rid of the freaking full page ads after every action! You've already got ads in it. Stop the freaking full page ones especially those that show up 3 times before you can get rid of them. And the ones that lie after the cool down where it says you need to look at the ad for 60 seconds for optimum effect. Bull!

  70. creative kingshuk-avatar

    creative kingshuk


    I tried all the famous cleaning apps . Clean master is one of them of my test. Then i saw the result that by using clean master i am getting my device smooth. It helps me to get a large space in my mobile than the other apps. The other features of this app impressed me very much. So my opininion is to download it , then you realise that i am telling right or wrong. But the one point that it shows too many ads

  71. ً-avatar



    This is a SCAM along with the majority of Cheetah Mobile's apps. This will not clean your phone, it will just make it slower, bloated, and full of ads. If you have a fairly recent phone it probably comes with it's own cleaning tools, so use those. If it doesn't, I would recommend CCleaner. This developer is not to be trusted.

  72. Andy Anderson-avatar

    Andy Anderson


    Works a designed, initially, with a minimum of ads. Then you begin to get bombarded with ads. I understand the "necessity" of ads and "free" software, but ads upon ads is going a bit too far. When the ads overpower the game boost, it is time to uninstall. When the ads take more time to show and go through their speil than it does for the app to perform its function, it is time to uninstall. Tired of the constant bombardment of ads is the reason for the low rating and the uninstall.

  73. Diesel Keough-avatar

    Diesel Keough


    this was a good app. A great app! up until they started to breach my privacy. they began to use information that should have been sent via a secure line, and used that information for personalised ads. this is an excellent app for cleaning, and for data storage, i love the aestheitic of the app. however this was changed with their latest updates. i understand that ads are important for revenue, but breaching the users private messages is not the way to go. please go back to 2010!

  74. Jennifer Swanson-avatar

    Jennifer Swanson


    Every single time I get on my phone recently it automatically pops up, and forces me to use the app before i can do anything... makes you watch too many ads, and frequently freezes up. Whenever I try to use private web browser, an ad pops up every time I click on something or go to a different screen, and no just that, but the ad takes up over half of the bottom of the screen so I can't even see the page, if I press x it won't go away. Even when I try to hit back, the same ad comes back up again

  75. suck mydick-avatar

    suck mydick


    for the most part, good app. it cleans very well and is easy to use. The main problem I have with it is that it will randomly pull up ads even when I'm not in the app, which is pretty sketch, and it will open itself randomly saying my phone needs to be clean, which I don't appreciate. But otherwise 10/10

  76. Jack Baker-avatar

    Jack Baker


    It works pretty well for cleaning your phone and killing apps when you need to save battery. The ads are super annoying, most of the time the inherent features don't work though (try to make a homepage shortcut icon for game boost, I dare you!!) and according to my phone logs the app uses almost as much battery as facebook. But I gave three stars because I tried a bunch of other ones and they were even worse. It's like a turd versus getting shot in the face- this is the turd

  77. Rob Edwards-avatar

    Rob Edwards


    Dont install. Once you do if you ever try to Uninstall it leaves processes on your phone that slow it down and take up space. And it will remain that way until you reinstall the app. Then it goes away, or atleast lies dormant . It will provide you with endless notifications that somehow keep appearing even if you turn them off. Im currently looking into legal action.

  78. Josiah Thiessen-avatar

    Josiah Thiessen


    It has everything you need. Anti-virus? Check. Junk file cleaner? Check. RAM and CPU booster? Check. Cools temperature? Check. Firewall for suspicious Wi-Fi connections? Check. App locker? Check. Gives you notification privacy? Check. All this for free at the cost of ads. But with VIP, you get an UNLIMITED VPN and other benefits for less than what a single plate of food costs you, which is $14 a month. I love this app. I suggest an extra layer of anti-virus as a second opinion. I use Kaspersky.

  79. Tactic Wave-avatar

    Tactic Wave


    I used this app before and had no problem. But the most recent time is different. When I uninstalled it I have since been getting this intrusive pop up in the form of "auto boost" and it won't go away. Ive tried everything even reinstall the app again. Ive gone through all of my settings. My phone is like some kind of trap now

  80. Waqas Javed-avatar

    Waqas Javed


    Something called 'Blocks' has been stealth installed with the latest update. You can't remove it without removing Clean Master as well. Up until now, the app has been decent but I have no choice but to uninstall it as this seems a little suspicious. I will just stick to using the phone's native maintenance program to clear the memory from now on.

  81. Anselm Nemela-avatar

    Anselm Nemela


    Collects way too much personal data and observes pretty much everything you use your smartphone for (including webpages you browse, files you download, photos you take, people you call). Developer uses your data for targeted ads, who knows they might even sell your data to other parties! Besides, even after months of using Clean Master I did not observe major increases in performance nor did it free as much storage as it says it does.

  82. Justine Janzen-avatar

    Justine Janzen


    I have been using this app for several years now, and thoroughly recommend it. I'm able to clean junk files, close unnecessary running programs, and save my phone battery all in one place that's easy to use and understand. On several occasions, over the years, the CM app has picked up/notified me when on unsafe networks, and even let me know that someone was trying to hack my phone through an open VPN.

  83. Jared Trammell-avatar

    Jared Trammell


    As far as I can tell this app is fairly useless. One of it's functions can be used to clean out cached data yet I go to my storage settings immediately afterwards and still see the same amount of cached data remaining. Furthermore, the app is claimed to help be able to speed up your phone though it has never done anything to help the funtionality of my phone. I have no way of telling if it's antivirus scans are actually doing anything because all it tells me is to mess around with installing other apps or with my phone settings. Find a different app this one just isn't worth the ads

  84. Arash Yoosefdoost-avatar

    Arash Yoosefdoost


    It makes Galaxy Note III extremely unstable and cause serious crashes and freezes which have no solution except hard reset. The junk cleaning make the phone instantly frozen. Additionally, it slows down the phone so bad that I have to uninstall it. I used to use this app for long time but because it makes the phone extremely laggy and unstable since last year, I uninstalled it and all problems of my phone was solved! Today I installed it again with hope that the problems could be fixed. However, it makes my Note 3 (N900) laggy and unstable again and I had to restart it several times. So, I removed it. It is so sad that an app which I used to recomment it to others ending up like this.

  85. A Google user-avatar

    A Google user


    My phone tends to operate more efficiently using this app but I am not completely certain it really works as described. I can hibernate battery draining apps, close this app, go right back in and it says to hibernate the exact same apps. So, is it really doing what it says it is or not? All functions seem to work this way.

  86. Randi Martin-avatar

    Randi Martin


    Would've given a high rating if this app still worked like it was supposed to. The CPU Cooler no longer cools down my phone, it only tells me the current temp. The phone booster only tells me how much space can be freed upon boosting, but doesn't give the option to boost. Everything quit working upon last update, so this app is currently just taking up space on my phone. Please fix these issues before I have to delete this app.

  87. Autumn Heft-avatar

    Autumn Heft


    2 WORDS..."MIND BLOWN"...My phone was running so slow, and my battery would die so quick, that i was almost to the point of just throwing it in the junk drawer and buying a new one. Then my friend told me she had experienced the same issues a few months back with her phone as well, and went on to tell me about this app, and how it was able to fix it in a matter of minutes (and all for FREE) I honestly didnt believe her, until right now!!! i will recommend this app for EVERYONE from now on end!!!

  88. Dominik Miško-avatar

    Dominik Miško


    The app does the job well, cleans phone and (I guess) boosts the phone, BUT it has got so many annoying features, notifications, turn itself on automatically, does things you don't want it to do, and probably even does what it fixed - slows down phone by always running. I had it on multiple phones, and always uninstalled it after a week or so... I'll rather get something else

  89. Paul Guy-avatar

    Paul Guy


    when I first got this I didn't quite know what it did! but now I do and my iPad has plenty of space and works really well! I highly recommend this app if u don't have much storage on your device! one simple click all your junk files are gone! it even scans for virus! you can put lock patterns on any game you chose! 5 stars thank you for creating this wonderful app! ❤ works online and offline! boost apps to make them work better!! thank you!!!!!!!

  90. A Google user-avatar

    A Google user


    Too many Ad pop ups! We realize the need for them, but they get annoying, when they even have Pop-ups when you are using other functions of your phone (like calling etc.) Unless you turn off notifications! With so many users using this app, you would think they have enough money to pay for the the upkeep, without bombarding with useless Ads, (which BTW are almost the same ones over and over again)!

  91. Zsuzsanna Ozvary-avatar

    Zsuzsanna Ozvary


    It was a good tool for cleaning up the phone and tablet, but since the latest update it opens randomly when I unlock the screen or open another app, many times with an ad. If I can't find out how to turn it off I will delete the app as it is more annoying than how useful the app is. (I see ads are gone when I pay for the app, but before I pay: does the random app opening go with it also?

  92. PHOENIX-avatar



    Guise this app is good and I also liked it. But, now it bothers me and irritates also because of the new notification cleaner. Whenever I turns it off. After an hour it automatically starts and then I have to off it again. It hides some important messages and also when I listen music in Wynk it shows notification and stops the wynk after a song. Please make it possible to turn it off according to our will.

  93. A Google user-avatar

    A Google user


    This app is a total phone saver. I have a very old phone and have tried other phone cleaners but they have not worked. My phone is super laggy but this app still works very well. It helps clean data, remove unwanted ram and a lot of other useful tools. I especially like the game booster because without it the games would not load. Not too many annoying ads either. Definitely deserves a five star works even with old devices.

  94. Braylon Rainey-avatar

    Braylon Rainey


    Its a great app! Usually It quite annoys me whenever i have loads of junk storage thats still in my phone that i dont even use anymore! And then my phone is on 87% storage; Thats alot! But when i got this app i successfully cleaned almost 4.50 GB of space!!! 🤯 You guys HAVE to try this out!! Now i can clean my phone whenever i want to download other big files. Its super fast & easy!




    Awesome App so far my phone is under great security and love the fact that it notifies you well in time when it has lot of junk and the phone is not working properly. If you need peace of mind this is the security app to download you will not regret. Nice part basic has ads but VIP ads free you are the boss and enjoy the app nicely so.

  96. Wayne h-avatar

    Wayne h


    It was good to start with but then you started putting the money down for the things you do and all the time spinning the wheel and playing the games and sometimes you'll watch all the ads and it will say sorry you missed out this time!!!(ive just been watching this rubbish ads and you say you missed out!!other than that it half works

  97. Akbar Khan-avatar

    Akbar Khan


    Well on the face of it, this app seems amazing. However, after using it for several months, I have realized that it does not clean anything. It is just a user interface which tricks you in believing that it is cleaning GBs of junk. In reality it just does nothing other than stealing your data and information. Just give it a try with this in mind, within minutes of cleaning few GBs of junk, it will again show that there is hell lot of junk. I am getting rid of this and so should you.

  98. Darci Stephens-avatar

    Darci Stephens


    I enjoyed using this app until it got a mind of its own. I was optimizing my phone and clicked for it to continue, in a split second, the screen changed to something else and where I had clicked continue from the previous screen was a purchase button. I immediately sent an email stating I did not want to purchase this and to please refund to my card. I am now on month 4 of being charged for a product I DON'T WANT, never did, and no one responds to emails. SUPER FRUSTRATING!!!

  99. A Google user-avatar

    A Google user


    The app does many things really well. I especially like the junk cleaner and the battery charge notification that gives you an audio notification when your device is done charging in order to prevent overcharging. The two things I don't like are that I have to update the virus database manually and the fact that there are a whole lot of obtrusive ads.

  100. एक विचार-avatar

    एक विचार


    It is fantastic! I can easily arrange my photos and videos using this app . It also helps me to get protected from viruses. It also shows the junk files and keeps my phone clean. It's best thing is that, I can lock my aaps and if any Intruder tries to check my aaps, the image of his/her will be captured in my phone. It is so useful and Ioved it.

  101. Presley Hut-avatar

    Presley Hut


    My phone had gotten to the point where anytime I plugged it in, it would run ridiculously slow. I found this app and downloaded it. After about 20 minutes of my phone struggling to download the app, i was able to use it and start clearing my phone off additional cache and other unnecessary junk. Immediately I was able to tell a difference. I haven't had a single issue with my phone speed since downloading.

  102. James Copeland-avatar

    James Copeland


    0 STAR RATING if possible ... I thought I like this app until I learn a horrible truth. this app intentionally slows down your phones performance to enable the users to use this app more. I would have so many connection and loading app errors cuz this app would use so much of my phones ram. After uninstalling the app, my phone works alot better. shame on you guys. everyone needs to read this. App is trash.

  103. Sahar Hassan-avatar

    Sahar Hassan


    It was working nice, but the updated one is not working properly! It has three main problems: 1. It shows inappropriate ads. I tried to lock them but it was not possible. 2. After sometimes it keeps open the apps, though I select the option that after exiting any apps, that should be locked instantly. Sometimes it works but not always. 3. Everytime showing the notifications, that system needs to be cleaned. which really disturb and waste the time beside making the system slow.

  104. Shroomgrl-avatar



    Lets just get it out there, all these anti virus, cleaning,cooling apps are all add intrusive and have a lot of cons mainly not all what they offer to do actually does what it says, often there's more con's than pro's. Its all down to finding one that is the least annoying and that works right for what you need done or fixed. I myself find this one to be the best one I have used. I needed one that controlled the apps burning my data in the background and battery and cleaning it all not just saying it did and then you come back 3 sec later and there's more to clean. Above all I needed one that would watch for malware and viruses. This one does all that, plus the Game master(game booster), app lock and anonymous web browsing is a plus and seems to work fine. They have also added a way to make real money by doing every day tasks, I can't tell you if it really pays out cause you need to make at least 20 bux to withdraw it from pay pal. I have yet to make that much I am up to 6 bux, I got 5 bux the first day I downloaded it and well you male pennies here and there so don't count on quitting your job anytime soon. I've used this app for 1 year total. I had an issue a month ago where I thought this app was causing an issue so I quit using it and the issue never went away. So I downloaded it again and all is right with my phone world again. Lol. Anyway like I said it all boils down to what ads and how many are shown you can handle and if the app can fix what you need. Have a great day!! Oh and I would have given a 5 star but then it would have to be perfect and well it will be perfect when the ads can be controlled as far as what I am shown. I mean I get it....Free needs for app designers/companies etc...bit find a way that I can choose what ads I see, I am a 40 yr old woman....I really don't need to see ads for men having trouble keeping their soldiers at attention for whomever......My husbands just fine...My point is, show me ads for...upcoming movies, video games, cosmetics, hell Ill even take lubrication ads but plz just listen and pay attention to your lower to middle class consumer. I would take a short questionnaire on what everyday things im buying so you can project the ads off my answers. Thanks for reading my feedback. Also I know a lot of app designers employ ad companies to handle the ads so if you are one of those companies, maybe find one that cares about what you are showing your consumer's in your app.aoery this was so damn long lol. Just had a lot to say, Have a great day!!

  105. YDV gusta-avatar

    YDV gusta


    i used to love this app so much till i found out that this app doesn't really clean the junks out at all, when i opened my apps settings and checked whether all the junks have been clean or not but it turns out none of them are being cleaned up, i feel very dissapointed by this cause i thought this is the best app to clean all the junks in my phone. i don't know whether this happens because i haven't update my app yet? i'm still using version 6, i really appreciate your feedback for this issue..

  106. Wesley Wright-avatar

    Wesley Wright


    Loves this antivirus app. I have tried many different ones in the past years and they didn't do what they was said to do but this one does it really does a fantastic job it also does a deep cpu clean and can also set up for privacy when using wifi and it will protect from hackers trying to get your info when using public wifi. There is many other things you can set it up to do in this antivirus app and it keeps frequent antivirus updates so you'll have up to date protection..... ***Devs, I commend you and I top my hat to you for this really great antivirus protection app . Awesome job keep it up... Devs I do have one question... About the section where it mentions setting up privacy for cryptocurency wallet and the other part about investing in cryptocurency... Devs can yaw put in a section that explains cryptocurency ??and about investing in cryptocurency ??and give more definition about what the privacy wallet for investing into cryptocurency does and doesn't do, for someone like me that hasn't heard much about cryptocurency??? I'd really appreciate it . thanks devs. ☺ Seriously yaw really need to use this it work's and it works really well. I rate 5 stars but I'd rate 10 stars if it a let me lol.

  107. A Google user-avatar

    A Google user


    It works really well except for all the ads. I still would recommend this app if you can get by with the ads that come with it. You can pay something like a buck a month to go ads free, I just choose not to. If you want full time VPN there's an other charge for that too. I get a VPN with my antivirus program so that's moot for me. I've upgraded my stars to a 4 from a 3. This is a very fine app. I like it and would recommend it.

  108. Ryan Lee-avatar

    Ryan Lee


    This is a great app, but I've discovered something troubling. I installed a firewall to monitor internet traffic on my device, and to my surprise, within a few minutes Clean Master attempted to connect to the internet more than 300 times with various IP addresses. There is no reason for this app to connect every few seconds; so I can only assume that this is some kind of advertisement scam that runs in the background and automatically cycles through ads to give the devs a lot of money. Shameful!

  109. Mike Lewis-avatar

    Mike Lewis


    The app is incredibly useful but use is marred by the embedded ads which do not discriminate when they appear and in some cases remove text that has already been typed in a social media message or stopping text being entered until the ad has displayed. Ads are now starting to command attention with time settings before the ad can be closed. Unfortunately I will be removing this app as its annoying and interfering with my personal rights.

  110. Doug Bronson-avatar

    Doug Bronson


    DO NOT order the VIP version. I was ok with the free version, but after I upgraded, Clean Master started auto-scanning for viruses anytime my phone had been idle & I received a text or other i have to wait until the scan starts before killing it & going to what I needed to see in the first place. It also schedules an automatic scan daily at 18:00. Turning this OFF does nothing...nor can you change the time. I have made several attempts to contact Support with dismal results!!

  111. Vivian Salony-avatar

    Vivian Salony


    The iSwipe feature is not working properly after the last 2-3 updates. It used to appear on the screen and it was easier/faster to switch between apps, but now it disappears after a few minutes, so I'm obliged to open Clean Master's app to activate it, again and again, and it happens all day long. Please fix this issue, this feature is very useful and it is an easier and faster way to access and switch between application's, but no so much when I'm, basically, obliged to open Clean Master's app dozens of times during the day, in order to activate it, again and again. Thanks in advance.

  112. Francis Taylor-avatar

    Francis Taylor


    Clean Master does make cleaning up your phone fairly easy, but the app itself doesn't work very well. If you clear junk files and then want to cool down your phone you'll have to force quit the app several times before it will let you do so. Even then I'm not sure the cool down feature even does anything. It'll say my phone cooled down by 6 degrees, but it'll still be hot to the touch.

  113. A Google user-avatar

    A Google user


    This app is very useful. Good and nice. But what i want to complain is went i enable the applock . I found out that went i open an app ,the screen of my phone display the things inside the app first. About 1 to 4 second . Only the applock system come out. So what i want to say is ,it is not sensitive enough. I wish this problem can be fix.Bye and have a nice day. Thank you for the app. It's cleaned my phone very well. Good job. Yea. Bye. Good luck. GONG XI FA CAI

  114. A Google user-avatar

    A Google user


    I really like this app because I tend to download a lot of apps and then I get bored with them and uninstall them. Clean master comes behind and cleans up the junk and adds that's left behind and there's more space for me to download something better. The only downfall that I see in this app is the ads that keep popping up, but it's tolerable.

  115. Shaun Stancombe-avatar

    Shaun Stancombe


    Easy to use. Works great. Even though I gave 5 ⭐ I do have 2 minor things about this app. 1: Its not self updating the virus database like I told it to do. Thats a bummer. 2: Had a different version on my old phone. Same app, different year maybe. The old one had a shortcut to my phone's clipboard. Made erasing copied stuff easier. I miss that. Bring it back!!!! But Id still give 5⭐.

  116. Zachariah M. Kemper-avatar

    Zachariah M. Kemper


    when I have the app lock screen on there is about a fifty percent chance of it forcing me into the virus checker, which I like having the thing check my phone to make sure it's safe, but that could be done with a simple notification, the way it is now it makes my phone totally unreliable, I do a lot of things on my phone, and I enjoy this app very much, but sacrificing it's usability to this extent is a deal breaker, hope you fix this soon because I've been using this app for years on 4 phones

  117. Twist Me1-avatar

    Twist Me1


    Overall, great app for optimizing. I use this with my tablet running android 7.1 it does most of what it says. I have issue with that it doesn't recognise my wifi, it always wants to scan unknown wifi. Also no matter how many times I run battery saver, my battery drains the first 35% in 15 minutes but then it takes 6+ hours for the next 50% . I like the app, alot other than the wifi recognition, I would give 5+ stars if not for wifi....

  118. Veronika Bankó-avatar

    Veronika Bankó


    It is funny that I officially have a choice to opt out of personalized apps, but when I press X in the pop-up window = it means the same as I have pressed 'Continue'. Then I go to settings: tap on the 'opt out of...' - what happens? the pop-up window appears again. Please, fix this! Thank you.

  119. Jcksn Mngrng-avatar

    Jcksn Mngrng


    Don't download it. This apps make your phone more lag. U need to clean your files and boost for every time. My phone is more better before I use this apps. It feel like this apps bring a disease to my phone. It download the adds in background and use your data. Never use it, or u will need this apps forever. My phone get heat. The tools in this apps is lie. This apps can't detect the temperature. It is only calculated the ram used. Ban this apps. Pig.

  120. Fer Q.-avatar

    Fer Q.


    I used to tolerate this app despite its infamous reputation; after all, it did work for me. I was alright with dealing with all the ads, but lately the app has been opening up *unprompted* which is just crossing the line. And no, I'm not accidentally tapping on the app. It happens right when I unlock my phone. Enough of Clean Master's shadiness.

  121. Duncan Moffatt-avatar

    Duncan Moffatt


    Had this app for a while. Not sure how long i have had it for but it does work very well. Speeds up my phone well. Have now after a while decided to be a VIP with no ads. Give it a go. It also help well if you need to update. Have also put it on my tablet. And it works well there too. Hope to have this for a long time!

  122. Brooke Valerino-avatar

    Brooke Valerino


    It seems to work and my phone definitely runs better after cleaning with this app. However, sometimes when I go into my android's built in clean up setting, it doesn't reflect all the notifications and junk files cleaned, though I just cleaned in Clean Master app. Also, the ads are insanely annoying and most not relevant to me, which is getting standard with free apps and games. Can't ding them on that.

  123. Ann Doucet-avatar

    Ann Doucet


    in addition to CONSTANTLY eating up my time to clean this and that, this app was directly responsible for eating up my battery"s life. As soon as i deleted it, my battery life went back to lasting the whole day without having to put it on a charger. my advise: get rid of it, it is not worth having for all its hype.

  124. Phyllis Cunningham-avatar

    Phyllis Cunningham


    I don't like that it locks me out so often. When I try to sign on it fights with my login box by quickly returning to the locked screen before my keyboard even has time to open. It can take 6-7 tries to simply type my password. There are so many adds that by the time I have run through all the cleaning processes I need to clean junk all over again. Why can't it just do it all at once?

  125. Connie Parker-avatar

    Connie Parker


    For a while the app was awesome I felt like I really was cleaning and taking care of my phone but after a while I noticed the ads would pop up on apps that shouldn't have pop-up ads for example Instagram Facebook. These as we're identical to the ads that pop up while using this app. I was no longer happy with the app because ads were popping up when they weren't supposed to be. So I uninstalled it thinking that would solve the problem. I was wrong I now have ads popping up on my phone forever.

  126. Istrea Guest-avatar

    Istrea Guest


    I love Clean Master except for it always running in the background and killing my battery. Plus it is a tad bit annoying due to the constant pop up to clean junk files, delete photos or every time I open a website, I get a pop up to scan, scan, scan for viruses! I turn it off but... what's the point of that???. Like I said, I love it but PLEASE... allow your customers to make our own settings. Thx!

  127. Simon Hill-avatar

    Simon Hill


    So far, absolutely disappointing. I've had this app for a few days now so it has been used on default setting. the amount of ads and notifications is ridiculously high. Feels like I spend a good hour interacting with this interface for no reason. My phone is MY PHONE, not your advertising platform. Please send me the owners ph no. so I can waste a hour of their time using 3 minute lots.....sounds annoying? a nuisance?

  128. Ray LeBaron-avatar

    Ray LeBaron


    WARNING! This app can block your phone. I had it before then switched phones. The new phone had no notifications and it drove me crazy. I read online cleaning apps can block notifications or other phone features. That is this app, not to mention so so many ads. Trust me, don't download, it's awful. 4.7 is misleading.

  129. Herre Noort-avatar

    Herre Noort


    It works, but... *Yay a lot of notifications! Almost like I have friends *Opens randomly when I unlock my phone, like the most annoying attention seeking ***** EVER *Reminds you that there's a lot of other crappy apps that you can download, now that you cleaned uo you have space to download more junk *Generates junk - or at least finds an excuse for junk, it piles up much faster with this app installed. *automatically downloads some stuff, what was it? It didn't say, permission from me? Nah.

  130. Scott Bailey-avatar

    Scott Bailey


    The app was great for years. Now I have got a new Galaxy S10+ and the Battery Saver function will no longer work. I open the function, the app scans my apps as usual, but when I press the huge green 'hibernate' button to put the apps to sleep the app opens my phones 'Appear On Top' menu, that's it. I can no longer optimise my battery and put apps to sleep. Which, along with cleaning junk files, was the main features I use. Now rendering the app 50% useful. No reply from feedback department.

  131. Alex Elias-avatar

    Alex Elias


    some educational tips would be appreciated in an app like this. like "what is causing the continual build up of junk files?" & why delete junk files when 10 minutes later it is back to the same amount. I can't even say with certainty that this app improves my phone functionality. And it definitely is counter productive if you have an old system or low ram to start off with. The app itself uses a lot of resources. And make an old device even slower.

  132. Georgie Mills-avatar

    Georgie Mills


    DON'T DOWNLOAD UNLESS YOU'RE READY TO DEAL WITH NEVERENDING ADDS!! I didn't notice a difference while using this app except for the rediculous amount of pop-up ads that I get. I removed the app from my phone thinking that would help and I still get an overwhelming amount of pop-up ads literally everytime I turn my phone screen on. Even when I'm not using my phone it gets turned on just so it can show an ad. It's also started using vocal ads when I'm not even using my phone so that's a nuisance.

  133. suessa444-avatar



    i had this app a while ago, and began recognizing my current app just wasn't doint everything I needed. So, while looking I saw this app and decided to come back to it and give if another try. I really don't remember why I didnt, aside from when I got my new phone, I had "help"selling it up. lol. I'm very glad to have it back!!! 7

  134. B33v5-avatar



    i dont get why people are downloading this app. it doesnt make my phones performance any better, and charge master looks corny and doesnt speed up the charging speed. By the way when you clean your files i've been seeing a lot of 'Ad Junk', but the only application that has ads pop up every time you click something so far as I'm concerned is this 'clean master' app. If you made this app to frustrate people and make them buy some no ads in app purchase i might as well delete this right now.

  135. Daniel Miller-avatar

    Daniel Miller


    as if you didn't have enough ads, you just had to add more wonderous ads on the app lock screen and to make things more interesting for people who use a pattern you make the spots visible for a few seconds and make them dim to almost invisible. hey why don't you have an ad pop up at start up and closing of your app. that would make things so much more peachy. can ya feel the sarcasm. i understand that you need ads to help with costs but DAMN.

  136. Vertuben Flugen-avatar

    Vertuben Flugen


    Used to work great! Now so many ads pop up it's like a gag on a tv show where someone's computer is unusable from visiting too many p*rn sites. Also, it not only freezes every time I use it, but sometimes restarts my phone! That's pretty crappy when you're in a hurry and trying to clean space for that very reason. Just cold restarting my phone has a better effect than using this app. Maybe I'll try again on a new phone someday, but uninstalling for now.

  137. Summah The *Vegan*-avatar

    Summah The *Vegan*


    While the frequent ads can be quite annoying, this app is great and they are totally worth it for the free version. I have downloaded this app onto the last 5 devices that I have had and have to say that it has significantly helped to improve my devices functionsbility. I use all of the features daily and it has helped me to have better usage of my devices. I have and will.continue to recommend this app to every one. Thank you for such a useful tool. 💖💥💖💫💖

  138. A Google user-avatar

    A Google user


    First time I used it it deleted all my safely backed up apps from the SD card that I backed up with the apprestore app. I learned how to avoid this issue, but hen a few years later I'm using it again and it did the same thing. It does that automatically without any specific warnings about deleting your safely backed up apps!! This is simply unacceptable!!!!

  139. A Google user-avatar

    A Google user


    This is a very good app for cleaning junk and keeping your phone safe. my phone has very bad storage so it's nice to have a cleaning app to help with that problem. I recommend this to anyone who is planning on getting it. its free, it's a good app, it's not one off those free apps that don't work kinda apps. it works super well and is an amazing app.

  140. Sunkistler-avatar



    Rec'd ad that indicated my phone had 13 (or 23) viruses and telling me to install an anti-virus app, but CM app says no viruses we're found. aren't these exactly the type of ads that are used to try to get people to download suspicious or malicious apps, etc?? CM is supposed to keep my phone safe from viruses so odd they sponsor a suspicious looking ad trying to get me to download another (and suspicious looking) antivirus app? I think I need to reconsider usi

  141. Lara H.-avatar

    Lara H.


    For the most part this app is very handy, and it's super easy to use. However, when cleaning the junk some of the ads are so data heavy that there is no freeing up of memory; or it becomes worse (going from 67% to 72%, for example). It kind of defeats the purpose of running the app.

  142. carlos fernandez-avatar

    carlos fernandez


    Great app I recommend it , clean my phone and don't delete any useful files just what is not needed to make your phone run smoothly, been using this app for like 2 years so far so good , and you can add or restrict what's going to be delete got to many good options you can use it to clean your ram , set to sleep app running on background and so much more is a great free app and got some adds but don't take over like some others app love it!!

  143. Andra Radoiu-avatar

    Andra Radoiu


    So not only does this app pop up constantly while I'm using my phone despite me blocking its notifications, but also I found out it was the problem for why I was not getting missed call notifications on my galaxy s9. Why would I want those notifications blocked?! The moment I deleted this app I got my missed call notifications back. n Never recommending Clean Master.

  144. Judy Bailey-avatar

    Judy Bailey


    Very pleased! I'm not so pleased now!! I don't have enough space for the Update, so I'm trying to open the "lite" version, but, I keep getting the other version. Which refuses to open the "lite" version. Can you please get this straightened out? I should let you know that I once used the regular app, I was so happy with it. Until I get more space to use the Update, I am very UNHAPPY!!!!!!!!

  145. Martin Shiu-avatar

    Martin Shiu


    Lots of ads but i've been using it for years. The largest issue is that if you click into the app and exit immediately you get stuck on a loading screen that overlays onto your device and stays there until you restart your phone. This happens even when the "draw over apps" setting is disabled for clean master in the settings. apart from the extreme amount of ads and notifications (can be disabled) its works pretty well

  146. Big Poppa Pump-avatar

    Big Poppa Pump


    I liked it better without the adds on the junk files. Like when u get a text or email n it stores them up in on folder. Then u just clock the folder n it has all ur messages but now there's a giant add that's very disruptive. I liked it better without that big add. I might have to erase this app. It's just too annoying to have that big add in ur folder

  147. Hannah McCann-avatar

    Hannah McCann


    I have used this app almost as long as I've used smartphones and I'm disappointed the quality has fallen so hard. I tolerated the annoying ads, accepted when the app started getting slower and slower, but now the app is just downright derpy and opens automatically when I unlock my phone. No more clean master.

  148. Pavitra Singh-avatar

    Pavitra Singh


    The phone gets very overheated when the app is in use or when the app is running in the background. This problem had never occurred before. It does not even deserve 1star rating at any chance .I recommend this app to no one at all. This was the first all I have ever downloaded on my phone.

  149. A Google user-avatar

    A Google user


    I honestly don't know how I feel about this app. I've been using it for the longest time, but I feel like it's bot cleaning my phone the way it should. I deleted over 400 MB worth of photos with this app and it still shows I have these pictures in my phone gallery even though they're supposed to be gone... I feel like it's not even working anymore. Considering removing from my phone. Maybe I'll save more room on my phone by deleting the app 🤷‍♀️

  150. Dukey-avatar



    Its a great app, yes. But I kept getting emails saying that someone has logged into my account in China and Japan. As soon as I deleted the app those stopped. I do not want to believe that that is because of this app, but that is what it looks like. It also said in my log in history "from suspicious app". I hope it wasnt from this app but I must voice my concerns.