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Clean Master (Boost & AppLock)

FREE Everyone android
Cheetah Mobile
Overview
Overall Satisfaction click me 96
It's an awesome and superb cache cleaner and speed booster.
Does a great job cleaning and speeding up my new phone.
so helpfull to my phone thanks for this app.
AWESOME THANKS FOR THE EVERYTHINGNESS.
The best optimizer available on play store.
love CM Backup & Boost.
Totally recommended this app.
Fun & Engaging click me 96
Its the awesome cleaner I recommend all to use it.
It's the most awesome cleaner.
AWESOME THANKS FOR THE EVERYTHINGNESS.
Awesome thanks for the application.
Usefulness click me 96
This app cleans everything unneeded off my phone.
nice and excellent and very usefull apps.
gets problems solved and keeps everything running smoothly.
saves time and boosts phone functioning.
Really helpful application to optimize my device memory.
The moust helpfull app I have ever downloaded :.
Use this app is very useful for android mobial.
Production Values click me 99
excellent all round and very clear and easy interface.
Quick and clean easy interface.
Ease of Use click me 93
Does the job perfectly and a very clean and simple app.
Good clean and simple app that works.
excellent all round and very clear and easy interface.
Quick and clean easy interface.
Fast simple optimises helps the phone actually like a Dr.
It Was Fast Simple And Great.
Reliability click me 51
I did a factory reset.
before installing this app i faced a lot of problems with my phone.
Haven't gotten any problems with my phone when I got the app.
Ads not Intrusive click me 71
So much ads and spam.
Security & Privacy click me 65
I use this in conjunction with their CM Security app.
Terrific 1st security app for new device user.
Battery click me 83
Downloaded this in conjunction with this company's other app - Battery Doctor.
Had to uninstall it and only keep battery doctor.
Cleans your system great my battery lasts alot longer now.
Since deleting my battery lasts a lot longer.
Click blue bar for explanation of rating.
Description
The World's Most Trusted Android Optimizer, Speed Booster and Free Anti-Virus app, Clean Master Helps Accelerate and Clean Up Over 400 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

Features

► 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!

► Duplicate Photo Remover

Clean Master can identify similar photos & blurry photos automatically, giving you the choice to keep or delete them. It's just like a gallery doctor for your device.

► JUNK FILE CLEANING

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.

► MEMORY BOOST

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.

► CPU COOLER

Cool off your device by finding and stopping the apps that are causing it to overheat and make your battery last longer!

► ANTIVIRUS

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.

► Game Booster

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

► Autostart Manager

Prevent apps from autostarting to speed up your device. (Root needed for this feature)

► APP MANAGER

Uninstall unwanted apps or bloatware and back up important ones. Some rooted devices will be able to move apps to the SD card as well as uninstall pre-installed and system apps. Our own Picks section lets you find useful apps that match your interests.

Supported languages

Arabic, Bulgarian, Chinese, Croatian, Czech, Dutch, English, French, German, Greek, Hebrew, Hungarian, Indonesian, Italian, Japanese, Korean, Norwegian, Polish, Portuguese, Romanian, Russian, Serbian, Slovak, Spanish, Thai, Turkish, Ukrainian, Vietnamese, Malay

Stay connected!

Join our community: https://plus.google.com/u/1/communities/106742377658392172082

Help fight against deceptive ads

Cheetah Mobile (formerly KS Mobile) is committed to fighting against misleading downloads. You can find our full official policy on this matter here: http://www.cmcm.com/about/promotion-policy.html

...More
This app helps me keep my phone running in tip top shape. found in 19 reviews
Super Ding macht alles was es soll. found in 19 reviews
I got rid of SO many games with a push of a button. found in 8 reviews
The best optimizer available on play store. found in 8 reviews
Smoothest and most efficient cleanup app ever. found in 8 reviews
This is the best tool for optimizing phone memory and overall. found in 7 reviews
nice and excellent and very usefull apps. found in 15 reviews
Makes a difference in performance. found in 9 reviews
Super service and mind blowing app. found in 12 reviews
you guys should make this app the app of the year 2014-2015. found in 4 reviews
Very good aplication and it does good things. found in 24 reviews
Awesome app ever seen before I use. found in 4 reviews
The moust helpfull app I have ever downloaded :. found in 8 reviews
Allows you to either deep clean or quick clean your phone. found in 6 reviews
Time saver and battery saver at the same time. found in 6 reviews
The best in the world I seen. found in 7 reviews
Worked wonders for lagginess in my mobile. found in 6 reviews
Cleans very well and keeps my phone in top condition. found in 7 reviews
this works like magic. found in 7 reviews
A very good and handy app. found in 4 reviews
It's nice cleans junk files but asks to update everyday. found in 691 reviews
Really works with cleaning up junk my phone tends to accumulate. found in 44 reviews
Excellent but contains too much ads. found in 11 reviews
it doesnt clean properly and big disapontament is. found in 8 reviews
Don't even need anti virus if u have this app. found in 73 reviews
and not committing to closing running apps/ force stop. found in 8 reviews
Great app for removing junk files n much more n optimization. found in 8 reviews
fix it: CleanMaster failed to grant root to Autostart Manager. found in 4 reviews
Please let us decide if want root access in settings. found in 11 reviews
This app is helpful to clean junk data. found in 11 reviews
keep asking me for a root permission. found in 7 reviews
Just hate how i have constant notifications to clean my phone. found in 6 reviews
But i need help on moving apps to SD card which it failed. found in 47 reviews
actually seriously slowed my phone down. found in 8 reviews
Delete junk data within a second. found in 14 reviews
It asks many permissions idont want to give that many permissions. found in 7 reviews
The app sucks right now. found in 6 reviews
New permissions allow camera to take photos without you knowing it. found in 5 reviews
Can't create shortcut for 1 tap boost when using Apex Launcher. found in 3 reviews
You can't clear the browser history like other apps allow. found in 5 reviews
you go to app manager and nothing changes anywhere. found in 33 reviews
Recent updates lock screens and force ads onto home screen. found in 29 reviews
But t notification toggle doesn't work in t latest update. found in 22 reviews
App lock is missing. found in 14 reviews
It's annoying that it keep deleting my apk file. found in 12 reviews
Clean Master doesn't allow me to grant root access. found in 11 reviews
My external sd card is not working abd picture deleted. found in 9 reviews
I would give five stars but ignore list is not working. found in 9 reviews
Slowed my phone down like hell & deleted some of my very important files. found in 8 reviews
This app wiped my SD card and pictures and videos. found in 8 reviews
Doesnt clean my internet history. found in 8 reviews
Boost ram page is not working z3 phone. found in 8 reviews
Clear search history is not working. found in 8 reviews
Too many permissions. found in 7 reviews
Kill tasks at screen turn off doesn't work in Lollipop. found in 7 reviews
Y this app need permission to access my phone calls. found in 7 reviews
The latest update says invalid package file will not install. found in 6 reviews
This app sucks whenever i off notification toggle. found in 6 reviews
Need an update or will un install it for sure. found in 6 reviews
It just making my phone lag and my game crash. found in 6 reviews
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TOP CHOICE!
APPCRAWLR's TAKE
HIGHLIGHTS
  • "Super service and mind blowing app."
  • "THE BEST app for cleaning your phone & saving space."
  • "especially those who play games alot."
  • "and has satisfying illustrations of memory/ cpu usage."
  • "It's an awesome and superb cache cleaner and speed booster."
  • "saves time and boosts phone functioning."
KEEP IN MIND
  • "Y this app need permission to access my phone calls."
  • "Recent updates lock screens and force ads onto home screen."
  • "Task killer doesn't work at all anymore."
  • "Clear search history is not working."
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