Clean Master: Boost Android phone performance without root

What is Clean Master?

Clean Master is the most popular antivirus, applock and cleaner app out there. It helps you protect your Android device from viruses. The app can boost your device's speed by cleaning junk and temporary files. It can also be used as Wi-Fi protector and app manager. Those features make2 it one of the best tools to have on your Android phone.

How Clean Master works?

Its most primary objective is to monitor your Android for stray files. They take space on your phone and slow it down. Most of the time these are system and other app's cache files. The app will boost performance by cleaning saved cache and junk files. It effectively saves battery life, boost RAM and lets you have seamless gaming experience.

Top features

• Cleaner to free up space
• Phone boost
• Privacy protection
• Advanced security
• Optimization
• Antivirus

Clean junk files and free every bit of space

The app's most important feature is the Cleaner. It performs a scan over your device memory for junk files. After this the software gives you list with all files that can be deleted organized by the app who use them and storage size. You've the option to clean all junk files at once or delete selected ones. Keep in mind that cache files are vital for some app's performance.

Boost your Android performance

Phone Boost feature is intended to boost your Android OS performance. It is done by checking for running apps and analyze how much RAM every app use. You can kill any app or games using significant amount of memory to boost performance. There is an option to quit all running application and free maximum RAM.

So far so good, app is keeping my phone clean and my phone is running better. My phone was very sluggish prior to putting the app in. There are some ads as it is a free app, but I find they are not too obtrusive and once in a while I watch the ad so Clean Master can benefit as well. Overall it was a good decision to use this app.

- Ms. W

Cool your phone CPU to make it work better

CPU cooler is another option to optimize your phone's performance. It scans your device for running apps that makes high load on your CPU. Quitting them will cool down the processor and increase overall performance.

Stay protected from all threats

The application has built in antivirus scanner. It can scan your device for virus, malware and every kind of malicious threats. You can enable the real-time protection for better mobile security and privacy. There is a Deep Scan option to check every bit of your phone storage and SD card for malicious files.

Improve the battery life of your phone

Battery Saver feature is great to improve your battery performance and life. You can use it to view which apps are using most power. Shutdown background processes in order to optimize your phone's battery life. Apps can be hibernated and revoked from permissions to display over other apps in order to do that.

Manage incoming notifications

The Notification Cleaner is another very useful feature to get rid of unwanted notifications. If you receive many notification from different apps and view only few of them this may be a solution to keep your notification center organized. You can bulk clean all notification and set permission for every app inside it.

Powerful tools

On top of all those features here comes the following tools:

1. Message security
2. AppLock
3. Advanced Cleaning
4. Wi-Fi Security
5. Clean WhatsApp
6. Safe Browsing
7. Game Master
8. Photo Cleaner
9. App Reset
10. App Manager
11. File Manager

Prevent others from seeing your messages

Message Security is a tool to prevent other from seeing your communication. In just one step it will protect your messages and hide pop-ups of new messages. This way you prevent others from seeing your notification preview.

Lock everything precious on your device with AppLock

AppLock feature can be used to protect your privacy. It will protect your messages, photos and every other content of any given software. Set a password to open selected applications. Within this tool you can enable the option to take selfie of any intruder that is entering wrong passwords. Another interesting option is to prevent others from making phone calls from your device.

Advanced Cleaning tool to free maximum storage

Advanced Cleaning gives idea of estimated used space on your device. It shows all the information about storage and apps usage presented in beautiful way. This way you get a better idea of how many space your photos, music and downloaded APK files take.

Wi-Fi Security for every network you access

With Wi-Fi Security you will stop worrying about using unknown Wi-Fi networks. It will secure Wi-Fi connection and keep your device safe all the time. It works by setting up a VPN connection that allows the app to monitor network traffic.

Clean WhatsApp chat history

It has tools to Clean WhatsApp message history too. It works by cleaning recorded chat backups. Use it carefully because once cleaned you may not be able to recover your chat history.

Surf the Web safe and secure

The Safe Browsing is tool to leave no browsing trace when surfing online. It opens a browser inside the application with basic functionality which leaves no clues of your activity. You've options for private bookmarks and creation of shortcuts for most visited sites. It cleans browsing record on exit.

Entertain yourself with mini games

The Game Master is quite interesting tool. It lets you play many games inside the app. This is quite useful if you want to play simple games but don't want them installed on your phone.

Delete duplicate and similar photos

Photo Cleaner tool scans your photos for blurry and similar ones. This is quite useful because you can remove similar photos easy without the need to preview them one by one. You can save only the best ones which are selected by the app's AI.

App Reset

The App Reset lets you reset any app to its default state. This means that all of app's data will be removed from your Android device. The data will be removed permanently so be careful what you delete.

Install new apps and remove unwanted ones

The software has also an App Manager. It is quite similar to the default app manager on Android phones. You can sort apps by size, name and date installed. Remove and uninstall any unwanted app in order to save space.

Access your device contents with built in file manager

The File Manager tool is good one to view your device contents in one place. It shows you new files, all photos, videos, audio and documents sorted in pleasant way. The view of app files is quite useful if you want to know which file is associated with which app.

Overall impressions

The software works very well and has beautiful UI that makes using the app very easy. It is an excellent solution to clean and maintain your Android. Gain full control over your phone to maximize performance and keep it clear of junk files. You can learn more about it from the official website.

I am using this app for years till now, but this is first time I'm writing a review which is a rarely I do. Ever since I have installed this app, it has increased the life of all my smart phones. it keeps my phone clean,up and running all the time. I also helps me save battery life and also in the last minutes before battery dies. I would recommend this app to everyone. sometimes it forces you to use the app in between, and it's okay with me as it's for my own good. keep Smiling and loving.

- LNiiharika Shankkhwar

v7.21 Update

Cheetah Mobile are updating this app on regular basis. They are constantly evolving the app with new upgrades and bug fixes. Here are the latest modifications in v7.21:

• VIP 7-day free trial feature is added.
• Scanning and antivirus engine are improved and now work better.
• Product speed and performance are optimized.
• Some known bugs are fixed.

Editor Veselin Nedeff