Optimization Master

Quickly releases memory, Clean up junk files

cxzh.ltd · com.lxyd.optimization

Not rated yet 5K+ downloads v1.0.08 20.4 MB Android 5.0+ PEGI 3 · Everyone

Download APK 20.4 MB All versions

Signature matches the Google Play version Details

At a glance

Latest version: v1.0.08 (9)
Updated: Apr 2, 2025 (1 year ago)
APK size: 20.4 MB
Requires: Android 5.0+ (API 21)
CPU support: x86 32-bit, x86 64-bit, ARM (legacy), ARM 32-bit, ARM 64-bit
Category: Tools (app)
Listed since: Jun 4, 2024 (at least)
Permissions: 41 (8 sensitive)
Website: lexing.tech
Developer contact: [email protected]
Privacy: Developer's privacy policy

About this APK

Optimization Master is an app by cxzh.ltd in the Tools category, listed since at least June 2024. It includes native code for x86 32-bit, x86 64-bit, ARM (legacy), ARM 32-bit and ARM 64-bit, so it runs on practically every phone.

It asks for 41 permissions, 8 of them sensitive, including read phone status and identity, access all files and read shared storage. The app offers in-app purchases through Google Play and can read the advertising ID that ad and analytics services use.

What's new in v1.0.08

Support Android 13

Description

From the listing uploaded by “appupdater”.

A free compact tool that provides junk clean and Apps manager among other features. Features ►Clean Up Junk Files：Clean up cache and junk files left behind after you install an app ► Whitelist: You can add frequently-used apps to whitelist ► App manager: Manages your apps and keeps the storage space organized ► Battery Status: Shows usage time Advantages ►Brand new user-friendly interface: Lightweight, simple and easy-to-use UI ►Works for low-end phones: Supports lower Android versions and is compatible with small-screen phones If you encounter any problems using the product, please send feedback and help us make the app better.

Security & authenticity

Security rating: Trusted

Signing certificate

Signature matches the Google Play version Checked by the source store on Apr 2, 2025.
Certificate from Google Play App Signing Google keeps the signing key for the developer, so the certificate carries Google's name.

Store checks and file details

Developer signature verified Apr 2, 2025
Validated against Google Play Apr 2, 2025
Signed byCN=Android, OU=Android, O=Google Inc., L=Mountain View, ST=California, C=US
Signing certificate (SHA-1)68:EE:00:32:BB:92:A5:34:18:0F:AC:FE:57:3C:B5:FC:3C:39:BF:BB
File MD511cbfd582bf38d54f7e07903f7d0f485
Uploaded by “appupdater” Gold tier · 117,810 followers · uploading since 2020

Scans and ratings come from the source store; the certificate comparisons are AAPKs's own, made from the files' published signatures. AAPKs doesn't scan files itself — compare the MD5 and signer after downloading.

Permissions (41)

Optimization Master requests 41 permissions, 8 of them sensitive.

Access all files Sensitive android.permission.MANAGE_EXTERNAL_STORAGE
Display over other apps Sensitive android.permission.SYSTEM_ALERT_WINDOW
Modify shared storage Sensitive android.permission.WRITE_EXTERNAL_STORAGE
Package usage stats Sensitive android.permission.PACKAGE_USAGE_STATS
Read phone status and identity Sensitive android.permission.READ_PHONE_STATE
Read shared storage Sensitive android.permission.READ_EXTERNAL_STORAGE
See all installed apps Sensitive android.permission.QUERY_ALL_PACKAGES
Write settings Sensitive android.permission.WRITE_SETTINGS
Access adservices ad id android.permission.ACCESS_ADSERVICES_AD_ID
Access adservices attribution android.permission.ACCESS_ADSERVICES_ATTRIBUTION
Access adservices topics android.permission.ACCESS_ADSERVICES_TOPICS
Access notification policy android.permission.ACCESS_NOTIFICATION_POLICY
Add home-screen shortcuts com.android.launcher.permission.INSTALL_SHORTCUT
Advertising ID com.google.android.gms.permission.AD_ID
Apphub bind apphub service (custom) com.applovin.array.apphub.permission.BIND_APPHUB_SERVICE
Battery stats android.permission.BATTERY_STATS
Bluetooth android.permission.BLUETOOTH
Bluetooth admin android.permission.BLUETOOTH_ADMIN
Change network state android.permission.CHANGE_NETWORK_STATE
Change wifi state android.permission.CHANGE_WIFI_STATE
Clear app cache android.permission.CLEAR_APP_CACHE
Control vibration android.permission.VIBRATE
Force stop packages android.permission.FORCE_STOP_PACKAGES
Full network access android.permission.INTERNET
Get package size android.permission.GET_PACKAGE_SIZE
Get tasks android.permission.GET_TASKS
Google Play install referrer com.google.android.finsky.permission.BIND_GET_INSTALL_REFERRER_SERVICE
In-app purchases (Google Play Billing) com.android.vending.BILLING
Internal broadcast protection (app-defined) com.lxyd.optimization.DYNAMIC_RECEIVER_NOT_EXPORTED_PERMISSION
Kill background processes android.permission.KILL_BACKGROUND_PROCESSES
Mount unmount filesystems android.permission.MOUNT_UNMOUNT_FILESYSTEMS
Prevent the device from sleeping android.permission.WAKE_LOCK
Read sync settings android.permission.READ_SYNC_SETTINGS
Remove home-screen shortcuts com.android.launcher.permission.UNINSTALL_SHORTCUT
Request delete packages android.permission.REQUEST_DELETE_PACKAGES
Restart packages android.permission.RESTART_PACKAGES
Run foreground services android.permission.FOREGROUND_SERVICE
Show notifications android.permission.POST_NOTIFICATIONS
View Wi-Fi connections android.permission.ACCESS_WIFI_STATE
View network connections android.permission.ACCESS_NETWORK_STATE
Write sync settings android.permission.WRITE_SYNC_SETTINGS

Required hardware & features

Basic touch input android.hardware.faketouch
Portrait screen android.hardware.screen.portrait