Clean Master (Boost & AppLock)
Cheetah Mobile - Sep 15, 2016


The World's Most Trusted Android Optimizer, Speed Booster, Battery Saver and Free Anti-Virus app, Clean Master Helps Accelerate and Clean Up Over 660 Million Phones! It Also Provides Real-time Protection With the #1 Antivirus Engine, and Secures Your Private Data With the AppLock Function.
Have you ever encounter the following problems?
Your device has become laggy and freezes all the time
You don't have enough space to take more pictures or install apps
Your battery has started draining quicker than ever
Your device overheats and needs to cool down
You want to lock your photos, gallery and messages from prying eyes and nosy friends
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. 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.
► Game Booster
Automatically improve your game speeds by 30%+ when launching games.
Cool off your device by finding and stopping the apps that are causing it to overheat and make your battery last longer!
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. 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.
► AppLock
AppLock can lock Facebook, SMS, Contacts, Gallery, or any other apps you choose. With AppLock, only you can see the photos you protect. Guarding your privacy is easier than ever!
► Battery Saver
Battery Saver help to analyze battery status and hiberate running apps to save power. With Battery Saver, you can stop apps that waste lots of power and extend your battery life in 1 tap.
► iSwipe
iSwipe gives you quick access to other apps and tools without having to go back to your homescreen.
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.
► Autostart Manager
Prevent apps from autostarting to speed up your device. (Root needed for this feature)
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:

Learn More

Additional information

Current Version
Requires Android
Sep 15, 2016
Android 4.0 or higher

More From developer

Jan 24, 2016


Uploaded: Jan 24, 2016 at 12:58 CST

File size:4.16MB


League of Tanks 1.0.0 by Cheetah Mobile
Nov 14, 2015


Uploaded: Nov 14, 2015 at 21:39 CST

File size:46.81MB


LOCKER - CM Locker 1.7.4 Beta by Cheetah Mobile
Jan 1, 2015

Version:1.7.4 Beta

Uploaded: Jan 1, 2015 at 21:39 CST

File size:3.83MB


Sep 11, 2016


Uploaded: Sep 11, 2016 at 13:16 CDT

File size:6.46MB


Apr 8, 2016


Uploaded: Apr 8, 2016 at 13:37 CDT

File size:3.7MB