Sorry, this item is not available in
Image not available for
Image not available

Clean Master Phone Boost

by Ks Mobile
Rated: All Ages
4.5 out of 5 stars  See all reviews (3,690 customer reviews)

Price: FREE
Sold by: Amazon Digital Services, Inc.
Available instantly
By placing your order, you agree to our Terms of Use

Special Offers and Product Promotions

  • Unlimited Cloud Storage: Never run out of space for all your photos, videos, and files with unlimited storage plans from Amazon Cloud Drive. Try either plan for 3-months free. Learn more

Latest Updates

What's new in version 5.9.0
  • fix few bugs

Product Details

  • ASIN: B009C7ZQM4
  • Release Date: September 21, 2012
  • Rated: All Ages This app may include dynamic content. What's this?
  • Average Customer Review: 4.5 out of 5 stars  See all reviews (3,690 customer reviews)
  • Amazon Best Sellers Rank: #220 Free in Appstore for Android (See Top 100 Free in Appstore for Android)
  •  Would you like to give feedback on images?

Product Features

  • 1. [Junk Files] - Clean Cache and Residual Files
  • 2. [Security & Privacy] - Erase important information and keep your personal data secure
  • 3. [Task Killer] - Advanced Task Manager
  • 4. [App Manager] - Backup, Move to SD & Uninstaller
  • 5. [Widget] - Memory Booster Widget

Product Description

Simple, thorough, and safe, Clean Master is the world’s most downloaded Android optimization app designed to clean junk files, regain free storage, boost memory, enhance speed, and secure your device from malicious apps and vulnerabilities. Brought to you by Cheetah Mobile (formerly known as KS Mobile).
More than 200 million people worldwide use Clean Master to remove junk from their devices and to prevent malware infections. Clean Master improves performance by optimizing device memory, unclogging storage and offering security against viruses, trojans and malware. Developed by Cheetah Mobile, Clean Master is the world’s most reliable companion for Android devices!

Highlights of Clean Master - Optimization & Antivirus

Thorough: 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, providing professional security protection. Scanning takes only 8 seconds, 500% faster than other paid antivirus apps.

Features of Clean Master- Optimization & Antivirus
-Junk Files Cleaning
Robust engine analyzes cache and residual files to save storage space in real time.
Protect your phone from attacks of malicious software, such as Trojan and phishing software..
-Memory Boost
Shut down poorly coded apps to save battery and optimize android’s performance
-APP Manager
Move apps to SD card, uninstall system/preinstalled apps and backup Apk files.

Technical Details

  • Size: 11.5MB
  • Version: 5.9.0
  • Developed By: Ks Mobile (Privacy Policy Click to see complete result in a new window)
  • Application Permissions: (Help me understand what permissions mean)
    • Read from external storage
    • Get information about the currently or recently running tasks: a thumbnail representation of the tasks, what activities are running in it, etc
    • Write to external storage
    • Read the low-level system log files
    • Access information about Wi-Fi networks
    • Access the list of accounts in the Accounts Service
    • Clear the caches of all installed applications on the device
    • Read only access to device state
    • Mount and unmount file systems for removable storage
    • Required to be able to access the camera device
    • Allows an application to write (but not read) the user's browsing history and bookmarks
    • Broadcast sticky intents
    • Find out the space used by any package
    • Access information about networks
    • PowerManager WakeLocks to keep processor from sleeping or screen from dimming
    • Allows installation of home screen shortcuts
    • Collect battery statistics
    • Allows an application to receive messages via Google Cloud Messaging
    • Allows an application to uninstall home screen shortcuts
    • Expand or collapse the status bar
    • Open windows using the type TYPE_SYSTEM_ALERT, shown on top of all other applications
    • Read or write the system settings
    • Open network sockets
    • Change Wi-Fi connectivity state
    • Access the vibration feature
    • Allows an application to read device settings
    • Change network connectivity state
    • Allows an application to read (but not write) the user's browsing history and bookmarks
    • Allows an application to read or write the system settings
    • One or more permissions that have no effect because they are no longer supported in Android.
  • Minimum Operating System: Android 2.3
  • Approximate Download Time: Less than 90 seconds

Customer Reviews

Most Helpful Customer Reviews
132 of 141 people found the following review helpful
2.0 out of 5 stars Warning for mobile phone users July 25, 2013
Verified Purchase
This application does a great job of turning off all of those pesky programs that keep running in the background. There's only one problem with this: it considered my phone conversations to be one of the applications needing to be killed. Several times, I had conversations completely cut off because of this application. Also, this application puts ads in your top status bar that have to be cleared daily. If these two problems were corrected, I could go from two stars to 5 very easily.
Comment | 
Was this review helpful to you?
246 of 269 people found the following review helpful
3.0 out of 5 stars Mediocre On Kindle Fire HD December 25, 2012
Verified Purchase
First off, the user interface on this app is wonderful. It seems to clear the cache well too. I also like the feature to check what app installers are on the device from apps that you have uninstalled. As well as the option to delete them. This feature works wonderfully. Sadly, it only clears history from the default Android browser. Kindle uses Silk so this features does no good. I tried it just to see, but it doesn't clear browser history. Also, it will only clear Google Play history. It does not clear Amazon App Store history.
Was this review helpful to you?
177 of 196 people found the following review helpful
1.0 out of 5 stars Not worth the trouble - contained spyware September 16, 2013
Verified Purchase
This was perhaps the biggest disappointment I've ever loaded to my Droid X. It promises smoother functions, more memory and simpler user interfaces. Initially it worked great for about a week. After that, it started acting very buggy.

Before loading it, the phone and all the apps worked. Some were slower than others but they all worked without glitches. After installing this (advertised on the Amazon App Store as compatible for my phone), some of my applications would randomly stop or start up. Two weeks in, I received a warning message from Google, that someone in China had tried to hack my account through my mobile device. I immediately suspected this software and checked the time stamp of the attempted hack and the last use of this app. They matched.

Almost immediately after uninstalling the software/app, the phone stopped working correctly. The unit would glitch on start-up and within minutes the screen would go blank. Think of the "blue screen of death" in a Windows environment or an infinite 'do-loop" from the DOS days. After multiple attempts to get the phone to work, I finally had called my carrier's customer service on my wife's identical phone in order to do a hard reset of the phone (ie, I lost all my data, calls, txt history... everything).

After a full reset, my phone worked fine. No glitches or anomalies. Once the hard reboot was completed, I have slowly re-added most of the apps I had before. With each add, none have duplicated the glitch. I must it associate to this application.

I would not recommend this software to anyone. I recommended to Amazon that this product be pulls, but much to my surprise, it's still out there and still potentially being used to hack or infect devices.
Was this review helpful to you?
181 of 203 people found the following review helpful
4.0 out of 5 stars Very nice efficient app. September 30, 2012
Verified Purchase
I have used this app on my kindle fire to help clear up some space. Within seconds, I had cleared a decent amount of data by deleting cache, unused save files, and online history that was hogging my precious memory. I have no complaints; it did what it says it does and I'm happy with it.
Comment | 
Was this review helpful to you?
136 of 152 people found the following review helpful
5.0 out of 5 stars Clean Master saved my Kindle Fire HD March 28, 2013
Verified Purchase
I had a problem because I downloaded then deleted several camera and photo apps.
As a result, the original photo section didn't work anymore.
Some residual process also drained the battery.
I tried process killers and battery savers and file managers as well as process monitors. It didn't help.
Then I downloaded Clean Master.
I did a clean sweep.
It freed 500MB and more important, it killed whatever was eating my battery and whatever blocked the photos.
Clean Master is a MUST have.
You'll see how much space that you don't need will be freed.

PS: I am not affiliated with the developer in any way.
Comment | 
Was this review helpful to you?
66 of 73 people found the following review helpful
5.0 out of 5 stars Great app April 24, 2013
By Mug
Verified Purchase
This is the only thing that could help me when my Kindle Fire storage filled up but showed nothing downloaded. This app showed that 5 deleted movies were hanging out in my storage space and took them off. Among other things! Freed up a TON of space on my device. I'm talking 5 GB!! Amazon told me the only thing I could do was a factory reset. So thankful I didn't start all over!!
Comment | 
Was this review helpful to you?
129 of 148 people found the following review helpful
5.0 out of 5 stars love this practical use app November 26, 2012
Verified Purchase
I don't know anyone who can't use a bit of help cleaning up files and useless stuff on their computer, tablet, this is marvelous and easy to use. Certainly glad I downloaded it.
Comment | 
Was this review helpful to you?
34 of 37 people found the following review helpful
1.0 out of 5 stars This App Trashed My Galaxy S4 February 1, 2014
Verified Purchase
After installing this app the seconds on my clock started jumping erratically and the alarms would not go off. My music player often would not skip forward or back. I also started having other problems with other apps. When something like this happens I immediately look to see what has changed. The only change was installing this app so I looked at the reviews to see if anyone else was having this problem and saw many others reporting similar problems. I wonder if all the five star reviews were made before the app had been on their phone long enough for these problems to start happening.

I uninstalled the program and the problems did not go away so I restarted my phone. Thankfully this seems to have solved the problem. I did this same routine several times before, even removing and reinstalling the battery on more than one occasion before uninstalling the app with no success so I have no doubt whatsoever that this was the source of all of my problems. My suspicion is this app just "cleans" things that are critical to my phone's operation.
Comment | 
Was this review helpful to you?
Most Recent Customer Reviews
Search Customer Reviews
Search these reviews only


Search Customer Discussions
Search all Amazon discussions

Topic From this Discussion
lap- top apple me gustaria instrucciones en español. gracias
Oct 10, 2014 by Rocio |  See all 2 posts
cleaner update
Is the cleaner compatible with the Nexus 7
Jul 21, 2013 by Edward G. Wilkas |  See all 3 posts
tablet Be the first to reply
icon removal Be the first to reply
Start a new discussion
First post:
Prompts for sign-in

Look for Similar Items by Category

Amazon Appstore Return Policy