Download Clean Master APK (Boost & AppLock) v5.11.9





Clean Master (Boost & AppLock) v5.11.9 build 51193641
Varies with devices
Overview: The World's Most Trusted Optimizer, Clean Master, Helps Clean Up Over 400 Million Phones!
When Do You Need Us?
CM is perfect for you if your phone has become laggy or runs out of battery easily, if it's stopped playing games smoothly, if it becomes too hot to hold, or if you want to free up some space to store more photos or songs.
What We Can Do For You
We make it easy to free up more storage from your phone and SD card, boost games and device memory, enhance speed & extend battery life, stop overheating and protect your device against malicious apps and vulnerabilities.

Highlights of Clean Master - Phone Booster & Antivirus
Accurate: 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.
Fast & Intuitive: Simple to use, super-fast and smooth UI, plus cool transition effects
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.
Features of Clean Master- Phone Booster & Antivirus
Cool off your device by finding and stopping the apps that are causing it to overheat.
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.
Calculate how much CPU is being used by apps on your device. Stop apps from wasting battery, slowing down your device and overheating.
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.
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
Want to join our volunteer team? Apply to get started:

Requested permissions by the App

Camera permission: This permission is used for Clean Master's flashlight feature, which uses the camera flash from the device's rear camera. Clean Master does not use the device's microphone at all - Android lists both camera and microphone permissions together, even if only one is used.


1. New Easter theme has arrived!
2. We hope you enjoy a sweet festival!
3. P.S Please do not worry if unable to update. We will work it out ASAP

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Reviews By Users:

Anthony P ★★★★★

Amazing I have been using this app for several years now and still love it. With the hundreds of other cleaners out there, this one still remains on top the many features all work like a charm. The only thing I would like changed would be the unnecessary features including news, Iswipe and the other features that already have their own separate apps. They just take up space and make the app less appealing. Still love the app and would love some more features and improvements.

Elyssa Mae ★☆☆☆☆

It's consuming a lot of RAM which is very opposite I turned off everything. The notification toggle, the iSwipe, the broom thingy, everything! But nothing happened. It's still consuming a lot of RAM. And wow! This app is byfar the top RAM-consuming app in my phone. What gives? If it weren't for Applock, CM cloud, and the Junk and Space cleaner, I would've uninstalled this. A lot of processes and services are running in my phone foreground and background. Fix this!

Susan Smith ★★★★★

CM Clean master The most effective, efficient and protection cleaning app. I've ever had. It's a must have for everyone to clean, detect viruses and keep your phone safe. User friendly. Susan Smith

Rakesh Dupga ★★★☆☆

Why All Privacy App Locker Have Equal Problem ? When I Minimize the app your privacy app locker Not Working Everyone can see Whatsapp last view,Messenger views Please add some Extra feature if i Minimize the App No Body can see My Messages Hope You Understand My Problem ☹

JohnDotCom Dolan ★★★★★

Good for years but crashing lately Not being used on a cheap phone (Note 3) and the automatic crash reporting emails were filling their inboxes so they started bouncing them. Apparently fixed in last update... Hope so.

Orlando Ochoa ★★☆☆☆

Used to be needed in older android os No longer needed in marshmallow... Causes battery drain now. Consumes 8% of the battery on Samsung Galaxy s7


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Android 4.0+

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Android 5.0+

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2 years ago