CM Security APK

Version 3.0.8 -
Last updated: Fri, 06 Sep 2019 2:23:06 UTC
cleanmaster,security,tools:, download,cm security and find my phone descargar,

CM Security apk

APP Information

Download Version 3.0.8 (30086035)
Apk Size16.81 MB
App DeveloperKS Mobile Inc.
Malware CheckTRUSTED
Install on Android6.0 and up

Download CM Security 3.0.8 APK

App Description

CM Security is cleanmaster,security,tools, content rating is Everyone (PEGI-3). This app is rated 4.6 by 1413 users who are using this app. To know more about the company/developer, visit KS Mobile Inc. website who developed it. apps can be downloaded and installed on Android 6.0 and higher Android devices. The Latest Version of 3.0.8 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 8882927+ times on store. You can also download APK and run it with the popular Android Emulators.

CM Security received the Oscar of the antivirus world for the 7th time
CM Security ranked #1 by the AV-TEST again! AV-TEST, a leading independent organization in Germany, conduct regular appraisals of all antivirus products on the market and hand it awards for excellence. Their award is regarded as like an Oscar in the field of IT security and antivirus research. AV-TEST evaluates antivirus software based on how well they can detect viruses, how user-friendly they are, and awards high-quality products their commendations. 
 New feature: Vault
- A new way to hide your photos
 Safer than safer: Intruder Selfie of AppLock
- Take a photo of someone who entered the wrong password twice
- Gotcha! The one who wants to snoop on my Whatsapp
 Professional and totally free App Lock (app locker with password): 
The top-rated, fastest and safest app lock, over 100 Million users, supporting 27 languages.
 With app lock, you can secure your privacy:
Lock apps - Lock contacts, WhatsApp, Facebook Messenger from prying eyes and nosy friends.
Lock settings - Prevent your children from buying unwanted appsgames and phone settings.
Lock privacy - AppLock for gallery, photos, and files.
The first applock which is compatible with Android L in the world
Highlights of CM Security: 

App ChangeLog

  • 1. New feature of SecretBox shortcut: Secret bookmarks. You can put your private websites in it and the browsing records will be auto-cleaned.
    2. Intruder Selfie supports our own Screen Lock feature now.
    3. Improved the experience of cloud vault.
    If your have any problem, please post in our G+ community:

App Screens

CM Security App Screen 1CM Security App Screen 2


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.

pair with Bluetooth devices
Allows the app to view the configuration of the Bluetooth on the phone, and to make and accept connections with paired devices.

access Bluetooth settings
Allows the app to configure the local Bluetooth phone, and to discover and pair with remote devices.

directly call phone numbers
Allows the app to call phone numbers without your intervention. This may result in unexpected charges or calls. Note that this doesn't allow the app to call emergency numbers. Malicious apps may cost you money by making calls without your confirmation.

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.

download files without notification
Allows the app to download files through the download manager without any notification being shown to the user.

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

control flashlight
Allows the app to control the flashlight.

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.

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

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

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

reroute outgoing calls
Allows the app to process outgoing calls and change the number to be dialed. This permission allows the app to monitor, redirect, or prevent outgoing calls.

read call log
Allows the app to read your phone's call log, including data about incoming and outgoing calls. This permission allows apps to save your call log data, and malicious apps may share call log data without your knowledge.

read your contacts
Allows the app to read data about your contacts stored on your phone, including the frequency with which you've called, emailed, or communicated in other ways with specific individuals. This permission allows apps to save your contact data, and malicious apps may share contact data without your knowledge.

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.

read your text messages (SMS or MMS)
Allows the app to read SMS messages stored on your phone or SIM card. This allows the app to read all SMS messages, regardless of content or confidentiality.

run at startup
Allows the app to have itself started as soon as the system has finished booting. This can make it take longer to start the phone and allow the app to slow down the overall phone by always running.

receive text messages (SMS)
Allows the app to receive and process SMS messages. This means the app could monitor or delete messages sent to your device without showing them to you.

receive text messages (WAP)
Allows the app to receive and process WAP messages. This permission includes the ability to monitor or delete messages sent to you without showing them to you.

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

send SMS messages
Allows the app to send SMS messages. This may result in unexpected charges. Malicious apps may cost you money by sending messages without your confirmation.

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.

use accounts on the device
Allows the app to request authentication tokens.

control vibration
Allows the app to control the vibrator.

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

write call log
Allows the app to modify your phone's call log, including data about incoming and outgoing calls. Malicious apps may use this to erase or modify your call log.

modify your contacts
Allows the app to modify the data about your contacts stored on your phone, including the frequency with which you've called, emailed, or communicated in other ways with specific contacts. This permission allows apps to delete contact data.

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.

edit your text messages (SMS or MMS)
Allows the app to write to SMS messages stored on your phone or SIM card. Malicious apps may delete your messages.

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.

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.

read Google service configuration
Allows this app to read Google service configuration data.

Older Versions

More Android Apps to Consider

Google Play Reviews

  1. Jonathan Kaufman-avatar

    Jonathan Kaufman


    It used to be one of the best apps until the recent update, going from "CM Security" to "Security Matter". What used to be a free security app that was simple to use became such a chore to use, especially with all the pop-up ads that can't be closed unless the ad timer runs out. They take up the entire screen, but only appear on a small strip at the bottom of the blank background that it displays. Is that really necessary? And they pop up after roughly every 30 seconds? And aside from that, it looks like everything has a fee to use. Then there's the private browser, which can't even be used without one of those timed ads popping up after clicking on a new page. What was wrong with displaying non-invasive ads like before the update? Is there a way to use the older version? Because I'm really tempted to find an older version instead.

  2. Rukia03-avatar



    download Subscribed in December asked for a refund within hours of getting this horrible subscription. To be completely ignored. But wasn't expecting much when you have an app that is just filled with nothing but fluff. It doesn't delete any junk files. Slowed my phone down. Made it so I couldn't answer my phone calls. Each update the OS digresses, and their CS gets worse. I use to like this app at one time..but it's a total joke now. Don't Download this app!!

  3. A Google user-avatar

    A Google user


    cm security and find my phone descargar I really liked the older version and would give that a 5 star rating. The current version has too many annoying popups and keeps wanting to exert control over things I would rather do myself. Also, I believe it is now using more of my battery. All I want is an anti virus application and memory cleanup, not all the rest of it. That is why I am uninstalling this application.

  4. Gary Marsh, Sr.-avatar

    Gary Marsh, Sr.


    I was using this to protect my device but I no longer can. Ads in apps are a fact of life but for me, when they are political... and it appears biased, one way or truly disturbing. Over the last few days it seems like every other ad is about Trump or the elections and I refuse to use any app where political ads are "forced" on the user, especially considering the time we are in now.

  5. L. A. Wiuff-avatar

    L. A. Wiuff


    For the last few weeks I've swiped my screen to open my phone and there's a screen that says Security Master has automatically scanned my phone. When I touch "got it" it takes me to an ad. When I try to "X" the ad it won't let me out right away. Even the home button won't get me free. Very inconvenient when I'm trying to get to an important notification. I just missed an important call because I couldn't get out of Security Master's automatic scan. Last straw. This app just keeps getting worse.

  6. Carlos-avatar



    It's an ok app, but of course you have the excessive amount of ads that everybody already mentioned; also I'd like to be able to lock/unlock all apps at once with one click (I'm not talking about "enter password once to unlock all the apps", you still have to go to each individual app to lock/unlock it). Also noticed some lag and overheating on my Note 8. Graphics and animations are cool but I prefer real results.

  7. Andreea Vasiliu-avatar

    Andreea Vasiliu


    It's ok, I guess. I mean it does it's job, but the adds are very annoying sometimes, especially when you have app lock and you try to quickly respond to a message and then a video add pops. Also, the notifications from this app are just too much. Some of them do help, like when I install an app it's nice to let me know of it's ok or not, but some of them are annoying too. Don't get me wrong, it does what I got it for, I mean it did save me from a virus, but that happened once and the notifications and the adds pop all the time.

  8. M. Nala-avatar

    M. Nala


    I tried to use this app with the best intentions. However, as soon as I installed it, my phone started to behave unusually in that, it began to lag a lot and slowed down to a snail's pace while using the internet. The app lock doesn't work either. And although it claimed it needs usage permissions for it to work properly, it still didn't function correctly after I enabled the usage access in settings. It kept giving me the same message stating that I had to enable the app to use it but I did! 😔

  9. Private Citizen-avatar

    Private Citizen


    The ads and this app just takes control of my phone, everything just started popping up and covering up whatever it is you need to do. Very distracting app. instead of just working in the background, it pushes you to purchase or go for their paid products. Damn I didn't even have the chance to see what's in the app when everything just started popping up! Didn't take me 5 minutes to decide on removing the app regardless of how good the app may be, I just don't effing care at that point.

  10. R. Alan Adams-avatar

    R. Alan Adams


    I really have no idea how well it works, but I'm only giving it 2 stars because whenever I would press my home button the screen would flash on ad off so fast that I couldn't swipe to gain access to my phone. After I was lucky enough to regain access, I immediately deleted this app. When a program causes weird activity on my phone, I avoid it like the plague.

  11. A Google user-avatar

    A Google user


    This app is constantly telling me my phone is overheating when it is stone cold and hasn't been on. I would like that to stop. If it really is overheating, I'm glad to be notified, but when it isn't it's annoying. The issue may be that many apps are running and using resources that slow other apps/ processes, that's a different issue. Other than that, I've gotten used to ignoring the ads. It's a good app as far as I'm concerned.

  12. Alan Smith-avatar

    Alan Smith


    Really, the program itself is pretty good and I realize to keep a program free they need to have ads, but it's got to the point where it's really too annoying. As long as they showed the 3 or 4 ads for each function while I was using it, it was ok. But placing a huge ad on my lock screen is just too much. After using it for a couple years it's time for it to go.

  13. Eve Lintner-avatar

    Eve Lintner


    I've used security master for several years, but this latest version is so intrusive with the pop-up ads that browsing a single page is almost impossible. I've just closed out 7 republicans/trump ads within 15 minutes. I want nothing to do with that and will be uninstalling. Last straw for me. Very disappointed. This really is a great security app, but they crossed the line.

  14. Dino s-avatar

    Dino s


    This app used to be very good. Lately it's been extremely annoying. I don't have the screen lock activated through the app. Yet, whenever I unlock my phone normally, the app still wants me to also unlock it again using "app lock". Also, app lock is hit or miss with the fingerprint...... Mostly miss. 8 times out of 10 it will not let me use my fingerprint to unlock the apps I use it on. App lock used to work flawlessly with the Note 8. Now...... Not so much. Please fix these annoying issues

  15. Bearacoal the tromboner-avatar

    Bearacoal the tromboner


    Not sure if it really worked hard since the scans would take no time and hardly came up with any bad reports. App lock and disguise work, however without the lock, adds appear at random times. These ads persisted after uninstalling the app. Ads are okay for free apps, however the ads should leave with the app. Plus, I'm sure there are plenty more advanced security/antivirus apps out there for free. Edit: Now app lock isn't even free and that does change my complaint. I couldn't fix the problem.

  16. Sandra Di-avatar

    Sandra Di


    I really appreciate the fact that security master is offering an overall protection to my devices for free, but the ads are so many and so invasive that I honestly, without exaggerations, very often forget why I clicked the app in the first place... It takes so long to go through the ads that I end up not bothering using it. Thank you.

  17. Robbie Roberson-avatar

    Robbie Roberson


    It's good at cleaning and detecting possible security issues. I love that it locks all my apps. Not in love with all the ads or how long it takes to skip them. By the time you wait or skip through two ads you forget what app you were accessing lol the x in the corner is soo tiny sometimes you just have to close the whole screen. Every time you unlock an app your bombarded with ads. Extremely inconvenient for people pressed for time and need to do a quick check or reply back.

  18. Fred Baker-avatar

    Fred Baker


    too many ads... blocks all notifications from other apps... it takes control of way more than it needs to. plus when trying to check things the ads pop up so much and fast as you try to click on something in this app chances are you click on an ad that's popping up and then have to go thru the process of closing it to get back to where you want to be... if you have the time for all of this then more power to you... my time is way more valuable

  19. vapordub-avatar



    Good for keeping an old phone up to speed. But I am quite curious as to why the new app requires the permission of my microphone.... I don't understand the need for my security app to have the ability to listen to me and my surroundings. . . Overall though it is an easy to use app great for all ages, and it does what it advertises.

  20. Maria Dobinson-Dines-avatar

    Maria Dobinson-Dines


    At first this app was really good but it intercepted all my messages, I missed several extremely important texts because I didn't get the notifications even though I tried to stop the app doing this. I also had a problem with the app constantly wanting me to put in my security pattern that showed what the pattern is as a suggestion, surely if someone broke into my phone giving away this info and showing them the pattern makes this feature pointless. I have had to uninstall the app.

  21. Lisa Shab-avatar

    Lisa Shab


    I like aspects of the app. Scanning for viruses, boosting the phone, etc. The AppLock was so annoying I had to remove it. Something shouldn't be that counterproductive. But what's most annoying is that while there have always been ads, since the last update, now you have to click on at least 2 ads. As far as the secure view, or whatever that was called, you can't even get to your site until after clicking on an ad. It's too much. I understand the need for ads but this is out of control. So I'll be looking for another anti-virus program.

  22. Nick Mascolo-avatar

    Nick Mascolo


    it dose a good job but I hate that it takes over my home screen and it runs all the time .it can be very annoying. some times I have to remove it then load it again the next day. security master works well most of the time. I really don't like it trying to take over my phone. also it covers the phone screen and I can't answer a phone call if they can fix that I'll reload it until then it is uninstalled

  23. Kellie Purves-avatar

    Kellie Purves


    great on my Samsung s6 Edge but when I upgraded to the Samsung Galaxy S9 + it stopped my SMS notifications. So, I had to uninstall. I couldn't keep this app on my phone, there was no where to change the settings so I could have notifications & this app together. Otherwise I would give this more stars. if you have a newer phone think twice about this app. regardless, of stopping SMS tones, this is good for security, cleaner ect..

  24. Chloe A-avatar

    Chloe A


    So the AppLock feature on this device has been bugging me non stop to activate it, I thought finally, why not. It simply wishes to keep others from accessing my apps when I don't want them too.. suddenly I started having this problem of not getting any notification or sound when texts were being sent to me, I would get them when I opened my message app but had no way to know they were there without manually opening and checking the app. So for weeks this was such an irritation! I had no time to go to a store and kept trying to figure it out myself, after much I repeat MUCH IRRITATION and searching, it dawned on me that this app was blocking all my apps unless I unlocked them. I had no reason to believe it should stop the notification too. Sure enough I deleted this app and I received my text message notifications just fine. So your applock feature, I HATE IT, I THOUGHT MY PHONE WAS BROKEN. If you have this problem uninstall app, should fix your problem.

  25. Stuart Muirhead-avatar

    Stuart Muirhead


    this app appeared to work well. based on what the app told me, it cleared up alot of my junk and notifications. however be ready for tons of it's own notifications and ads. I uninstalled after a few days since it was notifying me far more than what I had before, and everytime you use it, it pushes an ad or two on you. it also seems to be a slight drain on battery power. I reccomend it, but only if you dont mind constant advertising and notifications for you to use the app.

  26. A Google user-avatar

    A Google user


    Works amazing! It covers everything I need it to and want it to! Best security app I've ever had, or used hand's down! For being a free application it's better than most app's you can buy!!! Job well done security master... 5 start rating and I tell all my family and friends with smart phones, laptop's, tablet's, to use this one for all their protection needs.

  27. C T Dubowicz-avatar

    C T Dubowicz


    I had the ORIGINAL CM Security Master on my Samsung Galaxy III for years with NO issues!! Than I go and get a Galaxy S9+ and download the "NEW&IMPROVED" CM Security Master and "magical" things begun to happen!! It took me a while to ascertain WHAT the issue was and it was NOT the phone!! After this app was UNINSTALLED, the phone was working as described. Let's remember the old axiom - IF IT AIN'T BROKE, DON'T FIX IT!!!

  28. Dang Mai-avatar

    Dang Mai


    I was skeptical about this app as other apps in the past that I've used promised similar features, but this has been the only app so far to live up to its promise.... It's battery management is amazing. Usually on standby after 6 hours on standby I'd be down to 40% battery. With this app running and closing unused apps... I have 70% battery after 6 hours and I don't notice any performance difference in my phone or apps from how I use it daily.

  29. Heather R Bauer-Carroll-avatar

    Heather R Bauer-Carroll


    Loved this app all the years I've had it for 5 years. Until now due to all your new restrictions on your features unless paid month fees for them. It's messed up & not fair when you're still getting to show AD's. Y'all did so good with your app doing everything promised up til this. Which is why i'll no longer be using y'alls app. And I'm actually upset & not wanting stop use. But have to now due to new changes y'all made. Cuz I'm not gonna pay to get the things I need from y'alls app.

  30. Her Highness :-*-avatar

    Her Highness :-*


    at first i was like wow, keeps my phone running at optimum power, the the ads, then the notifications, and even when you x out of the game the app forces you to download, you can hear the game playing in the background. there's no place to turn it off. i have to physically turn my phone off so it can go away. I'll keep it for a week more, if it still does it, in out. ads are one thing, but continuous background user of my phone with no way to turn it off is a no for me.

  31. Shane Afualo-avatar

    Shane Afualo


    The app works great in clearing up space, closing background apps, and virus scanning; my only issue is since the update last week, whenever I connect to Wi-Fi, the VPN won't or cannot connect automatically. But when I connect to the VPN servers manually, I am unable to access the internet. I am a VIP member as well, if that has any bearing. Any suggestions or tips would be greatly appreciated!

  32. Ragini Shah-avatar

    Ragini Shah


    I have installed applock for a few apps in my phone. Everytime I open the app, I unlock the pattern and an ad appears, I cancel the ad and the lock pattern appears, I unlock it and again the ad appears. This goes on till I decide not to open the app anymore. Its extremely irritating so if you can fix it, great. Otherwise, there are other such apps in the playstore.

  33. A Google user-avatar

    A Google user


    So far, the sales pitch is in full swing. I'm waiting to see if it's as aggressive as other security apps that I uninstalled for the same thing. I loathe insanely overdone, in your face, pushy "buy me, buy me, buy me!" sales tactics. It's like navigating a mine field while learning guerilla war strategies in a fly by the seat of your pants fashion against what's little more than a hair's breadth away from blitzkrieg. No wonder I get edgy and uninstall before I accidentally buy something.

  34. Mack White-avatar

    Mack White


    App does a good job. I've had no virus problems since I started using it on my cellphone. Unfortunately, since the lastest update, call blocking is no longer available due to some "policy" problem. Yeah... you found a way to make a perfectly great app suck. Unfortunately, I will uninstall the app due to this reason. Old Cliche: IF IT'S NOT BROKE, DON'T FIX IT!!!

  35. Darrell Harless-avatar

    Darrell Harless


    Love the app and the experience. I know u have to charge people for using parts of the app, to pay for developing and maintenance and coming up with new features. But, I hope in the future, the app and feature will become free for all to use. Instead of having to use labels like VIP, or PRO for features and the people who pay for them. I do enjoy the rest of the app that helps with peace of mind. Thank for the update, I really have peace of mind with a great VPN.

  36. Megan Young-avatar

    Megan Young


    Got a new phone, first samsung ever and this software came programmed on it. As far as I can tell its helping protect my phone and notifies me when any "junk" needs cleaning and such but the amount of ads that comes with it is RIDICULOUS. I have to close at least 3 ads EVERYTIME I use the app. I get that I dont have the premium version but the amt of ads that come up with every use of the program is insane. Would be a 5 star if they were gone or if the "ad blocker" feature would block it's own ads.

  37. Arctic Snow-avatar

    Arctic Snow


    I loved this app for so long but now so many features are no longer free. I can no longer use the app for all the features I installed it for in the first place. I could handle the ads, but this is just upsetting. The creator should really know when to stop making things no longer free because at this point they are taking away things that people already had and didn't have to pay for.

  38. Honey Crider-avatar

    Honey Crider


    Even though I upgraded so I don't have pop-up ads, I STILL am getting these pop-up ads ALL the time! Even when I receive a phone call and answer. Right after I hang up. Boom! Pop-up ad! I like how the app cleans mt phone, but HATE the stupid pop-ups. They are happening everywhere on my phone.

  39. Marie Mayes-avatar

    Marie Mayes


    When you look at all the permissions this app has and what all can be done with them the app is not worth the risk. When you read the privacy policy and all that the people that control the app don't even mention anything app the permissions it has and if your hacked or get some kind of virus they are not held accountable for it. Not to mention if the the service is breached like Facebook they are not responsible for that. With all that said sounds like a app the government can use to spy on USA citizens with out their permission and knowledge. Do not install.

  40. Sheba Ma-avatar

    Sheba Ma


    I like that it has security options for each individual app. I especially like the disguise feature & the look on a person's face when you show them their picture of them being nosey...busted!! Lol. Also the ability to unlock an app while using it versus having to go back thru the main app to change it. I've used it maybe 2 years so far.

  41. M Rita-avatar

    M Rita


    Your notification blocker isn't working properly. when you click on something it will not open it! I didn't want to send the notifications into oblivion to never be opened again! This has been going on for a few weeks. Please fix this! edit: I've submitted this issue via feedback. now my call blocking feature is missing too! also submitted that! what in the world is going on with this app?!?! uninstalling because you're ignoring these issues! and you're just going to ignore the other issues???

  42. brajones the guy-avatar

    brajones the guy


    rogue app, not on my 3s! very interesting features, tried all of them but way too much interference with user experience, can't let that happen. unfortunately your app's stay was short-lived cause of this "drawing over other apps, clearly i immediately had issues with that. then i was left with no choice but deletion, sorry! but your browser is staying, has been my preferred browser. so at least you have 1 app installed.

  43. Skip Sutton-avatar

    Skip Sutton


    I loved the CM Security version for my low end phone which I couldn't use on my Galaxy 8. This app got ad crazy. When I try to do virus scan an ad pops up over the screen before I can see results. I turned off notifications and still got blasted like a machine gun shooting ads at my screen. There is nothing wrong with my phone...even Security Master says so. These ads are rapid fire when you open the app. It's like whack a mole. It's a decent app but my patience is gone and so is this app.

  44. A Google user-avatar

    A Google user


    I am RECEIVING ADS after I have subscribed to VIP. STARTED WITH YOUR NEW UPDATES. PLEASE FIX THIS PROBLEM... VERY ANNOYED! It has been from July 13, 2019 until today July 25, 2019 and I haven't heard one word from your site about removing the ads that I have paid for through your VIP SUBSCRIPTION THAT WAS PAID IN MARCH 2019 AND GOOD UNTIL MARCH 2020!!!! I HAVE WRITTEN TO YOU MANY TIMES IN THE LAST FEW WEEKS AND GET NO RESPONSE FROM YOU ABOUT MY VIP SUBSCRIPTION. FIX MY SUBSCRIPTION PROBLEM!

  45. I Am Lee Peace-avatar

    I Am Lee Peace


    This app is great but doesn't do much for securing much. I've set the finger print, pin and pattern along with the intruder selfie only to find that screen shot pictures were taken of things on my memo pad and found them in my photo gallery. I have setup the app lock on my most important apps only to find that whoever has accessed my phone in the middle of the night bypassed this apps locks and security measures I've set up. Not impressed.

  46. James Kinsella-avatar

    James Kinsella


    In short this is a hoax app... at least it feels that way and its saturated with ads. The frequency of its use increases from a little bit (once or twice a day), to needing resolving each and every time i look at my fone... and it leaves reminders everywhere so your compelled to do as it asks but i honestly don't think my fone functions any better for the use of security master. Personally i think this app is a virus... A Trojan Horse!!! Oh, did i mention it sucks the juice out of my fone... my fone last 3 times as long without this app!

  47. DJay 924-avatar

    DJay 924


    When I first had this (it was immediately on there) I wasn't getting the notified. Every time I thought there was something wrong, I had get off the app I was on, go to security master and check to see if any thing was wrong. This started to become anoying and so I deleted it. It's been a year, or less then one and I reinstalled it and it improved itself Due to the updates. If I didn't reinstall this, there would be something wrong with my phone. Some might disagree but I recommend to use this.

  48. Hernan Ducasse-avatar

    Hernan Ducasse


    Great app. However, it has too many ads. In replay: What a surprise hearing back from you guys. 5 stars to your costumer care. Of course I will give you furthermore details and write you an email with screenshots in it. Matters apart, I really would like to thank you so very much for your time and attention. I have been using this app for like 8 years I think, I really love it, however, the constant and so much many ads ruin everything. Will stay in touch. Cheers.

  49. Robert Schutt-avatar

    Robert Schutt


    I used it for awhile and it syarted changing many aspects in my phone without actually cleaning anything or securing anything. My text messages started coming in out of order, it would not allow me to download content no matter what settings i changed, and on top of it I would "clean" my phone with it then use my pre-installed device maintenance and showed it never cleaned anything. Took too much space for the headache.

  50. A Google user-avatar

    A Google user


    Its the best app but has some problems 1. If you leave the phone off for a while, if you turn it on, the app apparently doesn't want to activate it's security features (Security features activates after opening the app) 2. Sometimes the app doesn't ask for my password on locked apps.(Same as above) Overall its a good app with good security features and there might be bugs during beta release, still this app has the potential to improve and beat other antivirus apps and become the #1 antivirus

  51. Andrew Birch Christopher-avatar

    Andrew Birch Christopher


    Really. Don't you know that when you identify 2 holes and then leave them there (seen in your log and then verified) you are a PROBLEM and not a solution at all. AV also falsely reports virus definition update when network WAS OFF! Logging was disabled for some stuff you did and some logging in chinese! Its straight up malware and unsafe. I think it may have actually done damage. Large UPLOADS! Files started multiplying and mirroring to new folders. Cancelled. device reset.

  52. CheezyGamer-avatar



    it only made the ads and lagging worse. i was trying to get rid if them, but this app gave me more. worst thing i ever put my time into, LITERALLY. i got an ad about period tracking just now while typing this, and im a MALE. i think my anger is self explanatory. i suggest you find a different app that actually works. and for 443 characters, i think this review was more worth my time than the app itself. 1 star, if i could go less, i would.

  53. Benjamin G. Cutter-avatar

    Benjamin G. Cutter


    This is a great program, even if all you use is the free portions.You don't have to pay for good protection.It's easy to use,even for beginners & that is a very good thing. Most beginners are often intimidated when it comes to antivirus programs.They see all of the options and get nervous & some just skip it all together, not understanding the dangers that viruses can do to their phones/tablets/laptops and/or computers.So easy is a very good thing.

  54. Kat Mandoo-avatar

    Kat Mandoo


    The best of the best! I absolutely love it! It safely cleans up a ton of space, scans for viruses with frequent security updates and warns me if I'm about to enter a sketchy website. Can provide a VPN and will also close apps running in the background if I ask it too. I feel totally safe having this on my phone. I had tried several different apps but none have compared. I have been using this one for months now. It doesn't get any better than this! I recommend this app to everyone.

  55. WhŌ ÇæRēẞ-avatar

    WhŌ ÇæRēẞ


    Not a necessary app at all! Sure it does what it says and "secures" your phone, but it tends to interfere with your phone's settings A LOT and it gets frustrating over time. Conclusion: please use your phone's default settings/security features. It does the same job, if not better and your phone will work juet fine!

  56. Reeder-avatar



    Any thing that is developed by Cheetah has tracking software and lots of ads. Ever go into a file manager and find something that was not installed with your permission? Cheetah was probably behind it with their monitoring software that monitors what apps you use, what you search in the play store and much more for the name of advertising. The apps themselves do nothing that they claim to do. So how do they have high ratings? Fake reviewers that give out 5 stars to drown out the real reviews.

  57. ChrisTopher Asaro-avatar

    ChrisTopher Asaro


    I have been an avid user and Beta tester for many software. Many years have I tested on my own , before I went to college. Saying that, I add 5 stars. I use SM, on my Galaxy Tab 10,7 Tab, as well as on my Note 10. Flawless and Seamless, Smooth in every way. Consistent updates, with driven staff and great customer service. In addition to it's continuing efforts to improve upon themselves, the software and Industry, but moreover, they're desire to become the best Ultimate and Unified toolset.

  58. Jennifer Lynn-avatar

    Jennifer Lynn


    It started out fine but that's why I always wait to review. There is too much pressure to constantly update & the more you do the more problems you will have. It takes a bit to get used to & although it's not complicated the more apps you run the more you will have to keep track of. Different apps need different types of security & that's a good thing about this system. So if you want some advice keep it simpler to start. If you really like it then bump it up. The ads aren't bad.

  59. Kevin Sears-avatar

    Kevin Sears


    As of several days ago, this app is not working properly. It's draining my battery at a more substantial rate, when compared, than prior to. My status bar continuously shows what looks like a graph with an alert about Security Master. As a matter of fact, it began shortly after November 29th. Probably for the people who didn't purchase the 12 month deal!?

  60. Frank P-avatar

    Frank P


    i do Not like it...too many annoying pop up ads. when i uninstalled it my search engines crashed and would not come up...i reinstalled it and they worked about app should have a right to completely take over and dominate you for money to buy their services. if its free then it should be free and even then they have no right to control and manipulate you are your device. i am very angry about this.

  61. Deborah Kelly-avatar

    Deborah Kelly


    I liked the old one, I do NOT like this one at all. How do I disable auto erase, and I will decide when to use private browsing, not you! Or I will delete Security Master altogether. Why do apps have to mess up a good thing, this isnt the 1st time I updated an app I liked, only to hate the new and supposedly improved version. I wish I never updated it!

  62. Terri Bellman Ward-avatar

    Terri Bellman Ward


    This is great when it turns on.. I am paying $36.00 a year and this is the 3rd time I have had issues with the vpn turning on. Supposed to be automatic. Sometimes I have to go back & do manually which I don't always notice right away.. Now again, it won't turn on at all. UPDATE 2/17/20 I tried to cancel this app since vpn doesn't work anymore. I can use the free part for same service. I can't even get a refund.. So, it was only working for a few months.. Wasted my $$. Several emails never read

  63. Richard Pharon-avatar

    Richard Pharon


    It's a great anti-virus app with comprehensive security features for this reason I love the app. I have only one issue which the fact that I've been trying to purchase the VIP package (Pro) to remove ads and enjoy more features like the VPN but I keep getting this pop up notification "card 💳 declined". Could Management please help me solve this situation? Awaiting your feedback.

  64. Jenn Jones-avatar

    Jenn Jones


    Thanks so much for making this app, it works very well and the thought and design put into it is absolutely superb! I had a hacker gain access to my cellphone but once I downloaded this particular app.. everything is back to normal and I haven't experienced anymore suspicious activity. This will always be my go-to application for any security issues and I will definitely recommend it to my family/friends! Thank You!! -Jenn

  65. David Hulmes-avatar

    David Hulmes


    Used to be excellent but following recent update full of bugs, constant adds ,constant pop ups which are from cm security and really annoying (supposed to stop pop ups but when you get so many from the security app itself it is a waste of time). I know say you will fix its but it is not a problem with my system its you advertise so many ads ons constantly ,virtually every screen you go into theres another cm securitu add on you try to get users to install. You jist need to stop these constant add on promoting. Even pops up when the phone rings and i then cant answer it . I would really say this version isnt worth having as so annoying.

  66. Attila Szamoskozi-avatar

    Attila Szamoskozi


    Users of Galaxy S10 phones beware! Seems to work well as an antivirus program (though debatable if you really need one with the S10s built in security) but a big negative is that it was the sole reason I was not getting any text notifications. After a complete phone reset it was narrowed down to this issue. I had to remove this app in order to get text notifications again.

  67. Waldron Marc-avatar

    Waldron Marc


    it is a good app. However, when its says clear junk it will clean all of your data fron photos, videos and apps from the file manager. Good thing I read it before clicking it. The notification system isn't that great it recommends to clean junk, temperature of the phone every single time. Like its annoying. The notificatiom system also makes your phone crash and lag which isn't good when I am playing games.

  68. A Google user-avatar

    A Google user


    This app is very simple, straight forward and easy to use. Definitely the perfect app for someone like myself who is not the most tech savvy, so need something simple to use, and easy to understand. There are more ads than id like but overall im definitely pleased!

  69. Michelle McDonald-avatar

    Michelle McDonald


    It actually does what it says. I'm using it for my tablet. Previous apps that I've used you could scan and they tell you they're shutting things down or removing junk, only for you to scan 2min later and they're shutting the exact same stuff down or removing the same junk. Which tells me that they're not as good as they portray themselves, they're tring to make the app look more effective but for the observant it just comes across as a dud. So far I'm impressed with this app.

  70. Bob Stevenson-avatar

    Bob Stevenson


    Decent system awareness. Disorienting virus removal. It will tell you when a suspicious file or so is discovered BUT it won't let you either clean, virus chest, or delete it. It only gives you the option to"resolve" it. It's like a dictator finds out there is a predator in your house and he tells you that he will take care of it, BUT he won't tell you if he will shoot it, burn the predator out, or bomb the predator, and you don't even know who the offender is in the first place. Scans r slow 2.

  71. Kate Y.-avatar

    Kate Y.


    it worked fine at first, then after a few updates it felt like too many pop up ads all the frickin time! This app blocked me from literally using my phone! I was in a EMERGENCY situation and I had to wait for an AD to finish AND a SURPRISE PHONE SCAN to end before I could call for help!!! if there is a way to give this zero stars I definitely would!!!

  72. A Google user-avatar

    A Google user


    I've had this app for well over 5 months now. So every once and awhile I'll test it to see if it is still up to par. I just completed another test and it's still in good working order. *IT WORKED EVERY TIME * !! So now I'm sure that I'll be keeping this app. *No more tests needed*❗ ~~~~ Sorry for the long comment but I know that you (the reader) is interested in finding the best app for the job. Now and then the commercials bug me but, OH WELL, It's worth it !!

  73. Benjamin G. Cutter-avatar

    Benjamin G. Cutter


    I've been using this app on all of my tablets & on my phone for what seems like forever. This has to be one of the best apps of this type that I have ever used. Once you get comfortable with it & using all of its features it will blow your mind... This is the best app I have ever used, I love it !!! I have been reccomending this app to all of my family, friends, colleagues & coworkers. The ones that tried it love it as much as I do !!! Please Keep Up All The Great work you're doing !!!!!

  74. Knight Dark-avatar

    Knight Dark


    At first it did what it said, than it constantly wanted me to do some sort of scan, every half hr, or so. I noticed when I try to ignore the some of the many notices, my phone would lag. How in the hell is your phone hot, when it's been completely off for hours. As soon as I start up my phone, my phone was hot, or needed a urgent scan, or a boost. Really, it's for its advertisements.

  75. Liana manzella-avatar

    Liana manzella


    I used this app a while back , so I recent downloaded It again and I've noticed pop up add on my phone itself . Every few minutes ! a big annoying pop up the size of my screen and what's even more sketchy about it is that the adds are picking up my algorithms from google. for example my cat was sick so I looked up vet hospital near me and shortly later an add for VCA pet hospital came up. I'm deleting this.

  76. A Google user-avatar

    A Google user


    I like this app, I can keep up with issues that come up on my phone. 👍 ( I have one issue that I need an answer for ... I need to turn off " safe browsing " that is in this app. Google is my browser, I can't get it off and it's interfering with my phone right now. Please let me know asap. Thank uou

  77. A Google user-avatar

    A Google user


    pretty good app. Better then most other free apps as far as features go. Safe web browser, heuristic scanning are not in a lot of free apps but are in this one. My biggest complaint is that it's heavy on resources. Also the disguise app feature has an issue and will not work on my phone. so for that I will take away one star. Thanks

  78. J Vaughn-avatar

    J Vaughn


    I considered this a decent app at first, but have come to dislike it. Boost is helpful. BUT, turning on "sceduled scan" is permanent (the off button doesnt actually switch it off). I tried the notification cleaner, but it ended up being less convenient than simply swiping the actual notifications away (plus it generates more ads). "Clean Junk" takes forever on my phone. And after any given operation there are between one and three (THREE!) pages of ads.

  79. Luca Kukuk-avatar

    Luca Kukuk


    Very impressive app with plenty of features for the free security geeks :) a couple things to note, however: the interface and location of certain features isn't completely intuitive. Also, it is very annoying when the app pops up "rate!" or "protect this app!". But I was able to shut this off :) Also, the ads aren't too intrusive either. AND THANK YOU FOR SUPPORTING ANDROID 4.4.4!

  80. el c0m0d0re-avatar

    el c0m0d0re


    The app is pretty good so far. I am fine with the ads as this app is for free and it operates as it should. The only thing that bugs me is that it pops up way too frequently and unrequested to tell me that there is a "security problem" because I have something copied to my clipboard.

  81. You Cant Hack Me-avatar

    You Cant Hack Me


    I've always use this application at first I thought it was fake until I realized how much space I can free up and how many hidden files I had in my phone from exploring the internet, I'm glad I got this. Now I have 3 GB free when i only had 56 MB on my phone and 0 viruses trying to attack me thank you security master for protecting me and keeping those bad files out :)

  82. Kyle Haines-avatar

    Kyle Haines


    I'm deleting this stupid app! I swear if anything it's making my phone worse, it has more ads than all the signs and billboards in f***ing NYC and LA combined and I'm so annoyed and this bs pisses me off beyond belief. Literally can't go more then 15 seconds without a damn ad. And it's not worth paying for premium version, these people don't deserve s*** of out money!

  83. Khai Smart-avatar

    Khai Smart


    Can you please stop too many pop up to tell everything? Make it look like professional app is better than like kids app. And another thing, can you make option to disable animation when you do whatever jobs. Now a days, mostly people need something that can working very fast, and your kiddie animation make you look like slow app then you actually are. Maybe you can look at app like Kaspersky or Nortton, they look very professional. Your app actually better than them in engineering but ...

  84. Poisoned Acrylic-avatar

    Poisoned Acrylic


    The app is both annoying and boring. The games are trash: The games say you can continue by watching an add, yet you can't. The variety of games is limited, and the app keeps bugging you for many things. Knowing there is VIP for a SECURITY APP sounds like they want to give the company money, which they could probably due via advertisements, replacing VIP for ad removal, which would make much more sense.

  85. xxDeathWishxx212-avatar



    This used to be a good app until it schedules random adds to pop up on your phone ever 2 minutes. I was willing to over look the adds that popped up before unlocking an app but random adds popping up and kicking me out of whatever im doing is unacceptable. It won't even let me un install it no matter how many times I click deactivate.

  86. ObsidiAanna-avatar



    Disappointed by the call blocker being removed, but thankfully my phone also does that option. Love the app, have used for years, cleans and protects in real time, alerting you when an action should be done, but does not slow down or interrupt normal phone functions, even for older phones. Very reliable. Good with locking apps for safety. Ads aren't annoying and very easy to put up with to keep things free for users that want/need that option.

  87. Raven Strange-avatar

    Raven Strange


    When a call comes in, this app pops up stopping all ability to answer a phone call. other functions are good & usefull. but it gets in it's own way. even when you do a security scan a few hours later it wants you to scan again. does it do such a bad job or was it just programed wrong. wotst part is every complaint is met with can you send a screenshot. Hey programers I never saw any caller id blocking. read the post fix it, then contact me.

  88. Tal Shachar-avatar

    Tal Shachar


    Used to be a good app. When app lock was free. But now you have to pay, and those commercials that just pop up all the time doesn't matter what app you are using. You open something quickly and those commercials just pop up and play loud some stupid game ads. It's just horrible. If you keep it the same way it's time to say goodbye....

  89. Tweet_07-avatar



    Reviewed this before I had a problem with the password. I forgot my pin pattern and when I clicked FORGOT PASSWORD it directed me to answer a security question. I never set one up so I have no idea what the answer is. I can't access my SETTINGS to delete the app or reset my phone because it requires a password, which I have yet to get an answer on resetting. I cannot access any of the apps that were blocked to prevent intrusion, including my email. Frustrating!

  90. A Google user-avatar

    A Google user


    App keeps telling me things are wrong, right after it has told me everything is Ok. Seems to be doing this so it can ask me to download more apps to resolve issues; even asks me to download things I already have. ? TOO MANY ads! Not functional of you are using a map that is interactive; an ad pops up every time map moves.

  91. Google Account Killer-avatar

    Google Account Killer


    Terrible app runs in the background like a leech sucking your battery life and I was starting to realize my fast changing was taking longer then usual and I and I decided to uninstall this app because none of this was happening, and when I did what do you know my charging is now fast! Also there is a lot of annoying notifications that pop up like boost your phone, junk files etc...

  92. Rhonda J-avatar

    Rhonda J


    This app would get my five stars, but recently the VPN is not working. I went as far as to uninstall and reinstall the app to see if it's a glitch, it started working the night and next day when I tried testing it out on safe browsing it disconnected. I am also a VIP member, so I need answers, because I rely on this for some of my apps.

  93. Sherri Butcher-avatar

    Sherri Butcher


    I like this app. I have been using it for years. When I upgraded my phone, I downloaded it and it worked great. Only down side is, the app wont give me my notifications of other apps that I use. For instance, Facebook, message app, and a few others. Now I have to look for a different security app.

  94. shavonne m-avatar

    shavonne m


    they took away the blocking and phone portion with the update. that was my favorite part it helped notify me about spam calls and spam text messages so i will be delete this from my phone.. now it's all these ads and extra things just draining my battery so it was worth it before now not so much, I'm constantly "scan" my phone when i just did it so thank you but no thank you

  95. Jordan Lowery-avatar

    Jordan Lowery


    My experience with the app was that i can monitor my activities online or on the internet so that i can protect my online privacy at any time or everywhere i go to any place i will be glad to go to on my mobile phone on twenty four hours and seven days a week or on the weekends . And it helps people to understand why they need this security app to protect themselves, friends and families, because it is great and the best security app in the world. And also you can stay connected with your phon

  96. luxei luxo-avatar

    luxei luxo


    The first month I used it it worked well. A few ads but not a crazy amount. But then I cleaned it a few days later and it's been lagging my phone ever since. Wouldn't recommend this app to anyone. Will unless they like lagging their phone or have loads of ads.

  97. Nashon Odondi-avatar

    Nashon Odondi


    The reason I find it bogus is because it sometimes fails to serve its purpose. I set it to secure my emails, text messages, whatsapp, Facebook and LinkedIn. However, most times I access all these without the app asking for a password or fingerprints. The prompt sometimes comes minutes after I access them.

  98. highlandstarr-avatar



    Call blocker tool disappeared! Now letting blocked, unknown and scam calls through instead of sending them directly to VM like it used to. This was the main reason I used this app. I've also noticed that Support isn't even answering/addressing this issue reported by many people! Also, app drains battery and demands attention to "clean" and do various things way too many times a day! Don't waste your time on this app w/Support that doesn't care. Will be uninstalling if they don't fix this fast!

  99. Jared Owen-avatar

    Jared Owen


    Was a great app. I paid for a full year. Now I'm receiving adds that I have to wait to click out of when I have the "app lock" feature in use. I used it to keep my apps locked from others but you're going to make me watch an add when I paid for your service?

  100. Nova ツ-avatar

    Nova ツ


    Great app but way too many ads. Every 2 seconds I have a screen blocking whatever I was doing saying my battery is good. I dont need to know this every few seconds, I can just check within the app. Also, please get rid of the tiktok ads. Really, really annoying. Besides that, good app.

  101. Al Nazre Real-avatar

    Al Nazre Real


    Overall it's good. But I noticed it's showing some fake junk files to remove even when there is nothing to remove. Also it's slowing down my device which is very annoying. If it's making my device slower then why should I use it? But for all the features that the app has I just rate it with 4 stars and hope that you're going to update the app and solve this slowing down issue. Thanks.

  102. Charles Jamieson-avatar

    Charles Jamieson


    I had this security program about 8 years ago and it was amazing. It would tell me if an app was trying to get into my phone. That is what I expect out of a security program. When I updated it, that help disappeared. Then I had prpblems with it. If they want me to use this app again, then they have to show me that it is showing all of that and more. I expect my security to be exactly like that. I haven't found any security program that does that. They are all flaky.

  103. A Google user-avatar

    A Google user


    I know this app said it had ads but it had way more than I had expected. I don't know much about antivirus apps because I haven't had to install one until recently. But so far the three that I have installed, tell me that the download megabytes are much smaller than what is actually downloaded, leaving me very little room for anything else on my phone. This one says 16.45 but it was actually over 79; I hope they are not all like that.

  104. A Google user-avatar

    A Google user


    The app was fine. I believe deleting those files really improved the performance of my phone. The problem is security. Many security testers say that viruses not in the updated software will remain undetected. I don't know if this is true, so if you can get back to me, it's much appreciated.

  105. Tanya Boshoff-avatar

    Tanya Boshoff


    Amazing to remove viruses. Little bit annoying when the app wants to control everything u do. Every time I get an update message from other apps I have to go through this app's portal first. I would like it better if I could have it run checks when instructed and not in my face the whole time

  106. LNE R-avatar

    LNE R


    Way too many intrusive ads. Punches you in the face with ads (many of which are deceptive) all the time. they even pop up when you don't have the app open. I switched to Kaspersky. Otherwise the app works well I guess. I never got any viruses.

  107. James Robinson-avatar

    James Robinson


    I really like this app. The only problem I have is that ads just pop up on my screen at any given time and every time I turn my screen on. The ads are quick to dismiss but I don't think they should be able to just pop up any time it wants! Fix this and I'll give 5 stars immediately...

  108. Mark Gordon-avatar

    Mark Gordon


    My premium subscription renewal isn't due until Jan 7, 2019.. Can't understand why for the last couple of weeks ive been seeing adds on my security master lock screen?? Update 12/17/18 , I have sent numerous screenshots, emails and proof of subscription service and no response. I paid for the premium version which is to remove the adds. it's not up for renewal until Jan 7th, 2019.... Can someone there please take care of this problem...

  109. Mecha 101-avatar

    Mecha 101


    I loved everything about this app until it hid all my notifications. There was no setting to enable notifications again, so I uninstalled it. Immediately after, all my backed up notifications showed up all at once. This is a serious flaw in the code.

  110. A Google user-avatar

    A Google user


    This app comes in handy when lots of other apps like to run constantly in the back round and take up resources. Security master tells you what's running and stops the apps from running in the back round. It even tells you what apps are making your device run hot. And it scans apps when you download them to wether there safe or not. Security master has a lot of other useful tools in it as well.

  111. A Google user-avatar

    A Google user


    Would of had five stars but it seems your message security feature on the note 8 isn't working as it should. When I enable it, my notification sound goes silent, I want the sound just the content of it, is what I want hidden. U messaged you guys about this issue and never got a response, can someone from your team help?

  112. Ákos Fürjes-avatar

    Ákos Fürjes


    Subscriber since 2016. App worked ok, but unfortunately I had viruses. To me, for a premium app that claims to be the number one, (4 threats, Trojans and viruses) has been find by an other app. Lost some phone content to. The price is expensive if it doesn't work.

  113. Sue Sharp-avatar

    Sue Sharp


    Worked well at start, it butts in whilst I am in the middle of doing something important. Then I have lost my thread on what I was doing. It is so annoying jumping in and stopping me from doing whatever I was doing, changing my page from landscape to portrait. I cannot deal with this any longer, IT makes my head sore. I have UNINSTALLED this now. I cannot put up with it any longer as it suggests I need to clean. Plenty of options are available and it doesn't stop those annoying notifications.

  114. A Google user-avatar

    A Google user


    Used to think it was a decent service. Updated and constantly "scanned" my device, whenever I lit the display after a while, even as I tried to turn off auto-scans multiple times. Came to look into CM even more - they're mining a ton of your data. I'll pass.

  115. James Hegi-avatar

    James Hegi


    Would be great, if it worked. The app uses "draw over other apps" permissions to cover locked apps and block uninstallation with a lock screen that requires a password. It takes a second for this lock screen to appear so all any user needs to do is go to the App Center, drag AppLock to the uninstall icon, then spam button presses where the uninstall confirmation message will appear, and they can press the button before applock appears. Applock gone!

  116. SmolMega V2-avatar

    SmolMega V2


    It would be great if it wasn't doing the stuff it was made to counter. This app offers good security, but you'll want a beefy phone, because it's awfully demanding even when running in the background. To put it simply, you'll experience lag and overheating more often when playing games even WITH the boost feature active.

  117. Carley Warrington-avatar

    Carley Warrington


    I mean it sounds safe but once I installed it it wanted to know my location, calls, notifications with my contacts number and names. I'm not experienced with stuff like this but that seems kind sketchy you never know who can see your personal messages. My phones been sketchy but it's new and I'll take it to the store. I don't trust this app.

  118. A Google user-avatar

    A Google user


    So far so good. Not quite sure how it even popped up on my phone all of a sudden....but it seems to be delivering what it I am pleased. There are quite a few ads with the non-payed version....but what doesn't have ads nowadays?

  119. A Google user-avatar

    A Google user


    annoying ads when while trying to make emergency calls. this used to be good but now mandates you to wait until the ad is completed.they don't understand how important it's for user to make calls or send texts. the team didn't think about end user as much as they thought about promoting their ads. uninstalled app.

  120. Sufiyan Shaikh-avatar

    Sufiyan Shaikh


    Well. I am a VIP member and I am facing issue in call recording option. It was shown previously but seems it is removed from software after update. I have also submitted problem to you guys but no response yet. I face issue for finger print. I need to enter my passcode when finger print don't work. Even though my finger print working fine in phone lock.

  121. Amanda-avatar



    Besides how much better it makes my phone preform, which is completely night and day, other free features are AMAZING!! If anyone tries to open an app on my phone and doesn't know what they r supposed to do, it takes a pic of them. Then not only does it save it on this app but also in my gallery plus emails it to me!! Now that helps inform me a lot!!

  122. Yomaris Marte-avatar

    Yomaris Marte


    I just installed the APP it seems good but it has a fault, it does not privatize the incoming calls, it still shows the number that are calling,.... previously I used an application that blocked the incoming call and you could not see the number was calling until Draw the pattern. THAT'S WHAT I'M LOOKING FOR ..... ¿¿¿¿¿How can I get it to work????🙏🙏🙏

  123. Ryan Benemerito-avatar

    Ryan Benemerito


    Worst app I have used. I tried its App Lock but yesterday until now I can't open and read my messages because the app can't read my fingerprints and even its pattern password is not responding. Now I don't know if my cellphone's data can be recovered. Don't install and use this app guys. It will damage your phone.

  124. Nathaniel Tyler-avatar

    Nathaniel Tyler


    I have tried many security apps and this one by far is the best so far. My phone was at times lagging and a lot of times would drop calls coming in because the in coming call screen would not open in time to answer the phone. Very irritating. But I ran all of the scans that this app has and it found multiple malware that by definition was causing my phone to lag. Once found I deleted the malware and the problem of answering my phone on time cease to exist. I highly recommend this app.

  125. Cindy Saliwanchik-avatar

    Cindy Saliwanchik


    I love this great. However, I'm sick of the political ads that started popping up. Honestly thinking of deleting it and finding another app. Sick to death of politics. Don't want to see it on my phone security. Remove the political ads and you're 5 stars.

  126. Turkey Lunch-avatar

    Turkey Lunch


    Thought this would be good because of the 500 million downloads but they want you to enable a bunch of different things in the settings. This gives them access to read all your notifications including text messages. I don't feel safe with this app on my phone. It feels like a massive invasion of privacy due to how much information and control they want. I understand it's to protect your device but it's asking for too much. Hopefully nobody gives them access to that information.

  127. BreRyl Aenem-avatar

    BreRyl Aenem


    I love the interface and the fact that it does what it claims. Please keep up the honesty and the no holds barred approach and responsiveness to customers is a must for me so I like when I see you progress by listening to csutomers. Thanks! Let's see if 5 stars will hold. Edit: It does not clean what it said it cleaned and not boosting your phone properly. Uninstalled.

  128. Deol Guri-avatar

    Deol Guri


    I don't know what is the problem with this app. If we touch it's icon then all the app locks work perfectly and if we keep the phone for 1 or 2 hrs it will again open the app without asking the security password. Please suggest what can be done??? This seems to be annoying.

  129. Ayesha Zia-avatar

    Ayesha Zia


    It was working perfectly and I was happy with it but after updating this app it's not working properly, it removes security lock automatically and some time when you open whatsapp you can read few msgs and then It will show you the lock page to unlock the whatsapp, which means it's not as secure as it was earlier.

  130. Mike TM-avatar

    Mike TM


    The App has many annoying ads. The Fingerprint scanner rarely works to unlock an App. I have to go into the settings most of the time and turn on the Fingerprint Scanner because it turns off. Please fix this issue. Other than that glitch, the App is good.

  131. A Google user-avatar

    A Google user


    Excellent for scanning for viruses, identifying and clearing junk, adjusting the temperature of the phone, freeing up space. I wish the ads were not so inflammatory "YOU HAVE BEEN HACKED!!!" Other than that, I love it. FREE AND TERRIFIC!

  132. Pakistan Patriot-avatar

    Pakistan Patriot


    I have been using this app since 5 years. It worked greatly in the past. Now i have changed my smartphone. This app is not working on my new smartphone honor 7S . The message security and app lock are not working. I have searched many apps as an alternative but i found no app according to my requirements. Please fix this problem. I need your app to work well on my smartphone... I have already registered my complaint 3 times but no response from developer... Kindly fix the problem...

  133. A D-avatar

    A D


    Very good app except disgustingly dirty ads. I get ads of "chatting" with older women. What the hell is wrong with this app? Everytime I open something since I use the AppLock feature I get greeted with older women pics which I am not at all wanting to see in the beginning of my day. Plus I travel everyday so people actually saw it and ask me what the pictures are about. This is sickening. Doesn't cheetah check what ads it is showing? Very disgusting. Uninstalled until the issue is fixed.

  134. IronHawk 3000-avatar

    IronHawk 3000


    I'm not sure if it's this app that causes them but the ads that randomly pop up when I'm in ANOTHER APP is annoying... I want to text without getting those ads... Edit: actually the ads stopped now, but if they come back then I'll try to screenshot it. I think it only seemed to be doing it in hangouts but I didn't see any other reviews in that app that are complaining about ads so I don't think it was that. the ads are actually from Twitter or Facebook idk now, but it's not u guys lol

  135. Michael McNeil-avatar

    Michael McNeil


    I have liked this app for some time but within the past month or so I stopped receiving audible notifications for SMS text messages etc. I spent hours trying to resolve with no success until I read an article online suggesting I remove Security Master if I had it. I was reluctant as I said because I like this app but was desperate to get my notifications back and lo and behold uninstalling Security Master resolved the problem. While I like this app it takes a far back seat to knowing immediately when I receive a text or email. Sorry SM, fix the problem and I will be back.

  136. sanele mkhwanazi-avatar

    sanele mkhwanazi


    App has thus far working well there are few annoying features on dis app. Pls if you may develop a button to shut off four much ads some are even animating chowing our expensive data. Four much update the app request like everyday, can dat not be reduced to a weekly or quartely? i feel it z fourmuch😎 Sanele Mkhwanazi South Africa _ KZN Mangethe area _ Mandeni

  137. Michelle Gilchrist-avatar

    Michelle Gilchrist


    Would give a five star if it wasn't for the EXTREMELY frequent notifications. Additionally, once you use the app they're always trying to sell you more apps. I simply want to use what I bought and not be bombarded with so many promos to buy more.

  138. Padmaj P Kumar-avatar

    Padmaj P Kumar


    My phone is moto g5plus and i recently updated the firm ware to android oreo and now the locking features of apps are not working properly and its was working well till before the update, u have asked for the screenshot but i don't known which one to send, i have been you app user for the laste 3 years , only now i encounter a problem this app. Please fix the bug guyzs , you guys have done a great job.

  139. Bill Mcfadden-avatar

    Bill Mcfadden


    Love this app. Have been using it for years on multiple devices. I dont mind the many ads as you guys have to make money as well, however, the 30 second candy crush ads are a nuisance and if they continue, I am going to uninstall

  140. Greg LeRoux-avatar

    Greg LeRoux


    Comes with 5 million ads. Other than that, it sucks. Oh wait, just upgrade bc we jam it down your throat until you break, did and it still sucks. Congratulations on making an App that also requires all your permissions. Might as well give them my SS# and hand over my guns too. They probably already have it by now but they won't get my guns.

  141. A Google user-avatar

    A Google user


    Automatically reminds me of potential threats and provides solutions by which to avert them. Does all kinds of scans I can't keep track of them all but that's ok. I simply accept them and let the app do it's magic. It's fun watching as it goes to work!

  142. Louise .Martin-avatar

    Louise .Martin


    Too many ads and far too many notifications from this app alone. I have power saving mode turned on PERMANENTLY but this is the only app that will always have AT LEAST 2 to 4 notifications waiting each time I wake up my screen. Sometimes as many as 6. NOT OK and I've had enough and finally uninstalled.

  143. Jan Johnston-avatar

    Jan Johnston


    Been using this app for years. Great improvements over time. One problem I notice. I run the battery cleaner often, especially after heavy app usage. Sometimes it only presents the apps I've been using. After the auto Samsung updates, though, I start to routinely see ALL my apps present for battery save. What's with that? Annoying . Would be 5 star if you fix this issue.

  144. Jon Trombatore-avatar

    Jon Trombatore


    wrote this review b4 and deleted it. app constantly runs scans which freezes up my phone, can't even answer a call when running despite the function being shut off. sent screen shots of the problem to developers like requested and never heard back, I will not delete this review. Use a different security app, this one doesn't work and has way too many ads. I gave you guys an honest chance! They just asked me to send another screen shot and explanation? Been there, done that. Read the review!

  145. Richard Connery-avatar

    Richard Connery


    Great App. Decided to keep it after upgrading from my Galaxy S7 to a new Samsung A40. Got hacked a month ago and had to change everything including my phone. The S7 was brilliant, Samsung Themes are brilliant and they look even better on this A40 64G. So the security which is one of three is great.Cleans fast, checks for viruses does everything I need without the fancy graphics. Being a Grafik designer anyway for 35yrs I choose this App for security. Samsung Themes etc. for customising.5 star!

  146. Manahel khan-avatar

    Manahel khan


    This app is so good. Once I had to uninstall it and my phone immediately started to act buggy. Then after I downloaded it again, my phone worked like a charm. Would definitly recommend for mobile phones. Only thing, it had too many disruptive ads. Otherwise it is great.

  147. TryinToBe Alcyone-avatar

    TryinToBe Alcyone


    the app is amazing....omg literally is it necessary to pop up an ad every time something needs to be 'so' called cleaned or 'so' called scanned or 'so' called optimized. really too much of ads...the app works great I repeat the app is amazing and i understand that ads are your source of income but how sad it is I like this app so much even recommend it to some extent but still i am giving only one star...u can imagine how pissed i am with this

  148. Natalie Powe-avatar

    Natalie Powe


    I've been using this app for the past few years but keep having to reset the screen timeout on my Sony device every time I want to use an app as it keeps defaulting to 5 seconds. It doesn't seem to do the same thing with my Samsung device can you please fix it. Thanks in advance

  149. Rj H-avatar

    Rj H


    I got this anti virus for my note 4... but the app was burning up my cpu and forced my phone to shutdown... while the app runs in the background in burns up the cpu freezing, then crashing the phone... unable to turn it on again because of the battery burn out... when I was able to boot the phone, uninstall this app, then do a factory reset. my note 4 worked again no problem... which conclude this app was the issue... my note never crash like before till I started using this antivirus...

  150. A Google user-avatar

    A Google user


    I've been using this app for almost 3 years. Lately, everytime I run the cleaner, it tries to access locked apps multiple times during a clean. This is not only extremely annoying, but it's also EXTREMELY suspicious. Why is this app all of a sudden trying to access another app(s) while cleaning???