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Improve phone speed, free up memory and storage space, and protect your device from viruses

Improve phone speed, free up memory and storage space, and protect your device from viruses

Vote: (60 votes)

Program license: Free

Program by: DU Apps


Works under: Android


Program license

(60 votes)


Program by


DU Apps

Works under:


DU Speed Booster Cleaner is a complete toolkit for optimizing the performance of your Android device. It even includes several features designed to protect your privacy and the security of your device. This free app is one you need to get if you want to make the most out of your Android device or if you're noticing performance problems, such as applications being slow to load.

Smartphones and tablets running Android work in a way that is very similar to a PC and are thus prone to the same problems that could prevent them from functioning in an optimal way. One example of this is unnecessary files taking up storage space that could be put to better use. DU Speed Booster Cleaner scans your Android device for files that aren't useful anymore, such as application or browser cache data, temporary files left behind by an app you no longer use and more. It has an application manager that shows you all of the apps installed on your device and how much space they take up. You have the option of uninstalling those you no longer need or moving them to an SD card if possible.

Another highly useful feature for cleaning up space on your device is the APK manager. APK files are installation packages that are used to set up an app on your device. Once an app has been installed and is up and running, the APK file isn't necessary anymore. If you need to reinstall an app that has malfunctioned, you can usually just download it again. Even if you want to keep the APK files for your app to save you from having to download them again if you need to restore your device to factory defaults, you can back them up to an SD card or transfer them to a PC's hard drive. DU Speed Booster Cleaner's APK manager finds these files on your device and lets you choose which ones to remove.

The "Accelerator" feature shows you all of the apps running on your device and how much RAM they're using, all while giving you the option to close unnecessary ones. There is also a "Game Booster" feature to improve the performance of mobile games by shutting down unneeded background applications to free up RAM while they're running. However, this feature still needs some improvement, as it doesn't fully work with all games.

DU Speed Booster Cleaner comes with security tools too. One is a malware scanner that checks your Android device for potentially dangerous apps and the other displays permissions given to installed apps, like accessing the Internet or your camera. Finally, it has an Internet speed test option. This runs a series of test to measure the performance of the Wi-Fi or mobile data connection you're currently using.


  • Includes many useful tools in a single app.
  • Completely free to download and use.
  • Can find malware in addition to boosting device performance.


  • Game Booster tool doesn't work with certain mobile games.