Android Quality Index

Clean Master (Boost & AppLock)

Clean Master (Boost & AppLock)

us Android Tapp 05 Mar 2013 9.6 Read the review
us Google Play Review 25 Nov 2020 9.3
Read reviews
us 25 May 2013 8.8 Read the review
us AppsPirate 31 Aug 2015 7.0 Read the review
The most trusted and safe Android optimizer, junk file cleaner, speed booster, battery saver and free anti-virus app with over 740 million mobiles. Clean Master(Boost&Applock) helps accelerate Ram and clean up junk and cache files! Clean Master(Boost*Applock) also provides real-time protection with the #1 antivirus engine, and secures private data with app-lock 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 noisy friends

Clean Master(Boost&App-lock)Highlights:

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 home screen.

Prevent disturb and annoying notifications from showing in notification toggle. Make your phone stay away from trash notifications!

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 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 help to analyze battery status and hibernate 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 gives you quick access to other apps and tools without having to go back to your home screen.

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.

Automatically improve your game speeds by 30%+ when launching games.

Charge Master shows estimating remaining charge time and protects your device in charging. You can also receive notification when charging.

Private Browsing can clean your browsing history immediately, keep the browse data spy from others.

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:
If you come across one of these ads, you can help us take them down. Please send the link and screenshots of the ad to Much appreciate.

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  1. Copy the HTML code snippet and paste it into your site.
  2. The badge will automatically display on your web page with the Clean Master (Boost & AppLock) Android app's current Qualityindex rating.
Quality Index
Publisher: Cheetah Mobile
Category: Tools
Content rating: Everyone
App version: Varies with device
Requires android: Varies with device
Installs: 500,000,000 - 1,000,000,000
Clean Master (Boost & AppLock) image #1
15 Dec 2013
Version: Varies with device
28 Nov 2013
Version: 3.8.6
06 Nov 2013
Version: 3.8.3
22 Oct 2013
Version: 3.8.2
29 Sep 2013
Version: 3.8.1
13 Sep 2013
Version: 3.8.0
11 Sep 2013
Version: Varies with device
06 Sep 2013
Version: 3.8.0
18 Jul 2013
Version: 3.7.0
15 Jul 2013
Version: Varies with device
26 Jun 2013
Version: 3.6.0
21 Jun 2013
Version: Varies with device
30 May 2013
Version: 3.5.0
06 May 2013
Version: 3.4.0
28 Apr 2013
Version: 3.3.2
13 Apr 2013
Version: 3.3.0
30 Mar 2013
Version: 3.2.0
16 Mar 2013
Version: 3.1.0
06 Mar 2013
Version: 3.0
22 Nov 2012
Version: 2.1
19 Nov 2012
Version: 2.0
30 Sep 2012
Version: 1.1
09 Sep 2012
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