About this app

DU Cleaner is system trash files (caches), extend SD card storage, and solve your lack of disk space. Plus free Speed Booster for Android Phones.

Have you ever encountered the following problems?
1. System garbage causes the phone to run slowly and app garbage eats up your internal storage.
2. No more space is available for new photos or apps.
3. Your phone is running crazily slow.
All these situations need a clean-up tool, such as a phone booster, junk remover, etc.

Highlights of DU Cleaner (Boost & Clear Cache):
► Ultra-small size
Making it much smaller than similar apps on Google Play.
► Extremely focused
Performs the most comprehensive trash-cleaning to save you more phone space;
► Intelligent analysis
Using our new intelligent analysis engine, DU Cleaner (Boost & Clear Cache) deletes what you want to remove, leaves what you think is useful, and never loses your good memories.

Features of DU Cleaner (Boost & Clear Cache):
► Clean Up & Junk File Cleaning
The junk-creating behavior of millions of apps has been analyzed so that DU Cleaner (Boost & Clear Cache) 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 features make it easy to optimize directly from your homescreen.
► Useless APKs
Find and delete useless APKs on your phone to free up more storage space.
► Residual Files
Clear up residual data from previously uninstalled applications.

The World's Most Trusted Android Optimizer, Speed Booster, and trash-cleaning app; DU Cleaner & Speed Booster is a FREE app that can help clean redundant apps and files, free up storage space, clean up your RAM, and speed up your Android device.

App Permissions

Allows an application to call killBackgroundProcesses(String].
Allows applications to read the sync settings.
Allows an application to change the Z-order of tasks.
Allows an application to write to external storage.
Allows an application to read from external storage.
Allows an application to find out the space used by any package.
Allows an application to collect component usage statistics
Declaring the permission implies intention to use the API and the user of the device can grant permission through the Settings application.
This constant was deprecated in API level 21. No longer enforced.
Allows an application to modify global audio settings.
This constant was deprecated in API level 8. The restartPackage(String] API is no longer supported.
Allows an application to receive the ACTION_BOOT_COMPLETED that is broadcast after the system finishes booting.
Allows an application to broadcast sticky intents.
Allows mounting and unmounting file systems for removable storage.
Permission an application must hold in order to use ACTION_REQUEST_IGNORE_BATTERY_OPTIMIZATIONS.
Allows applications to write the sync settings.
Allows an application to request installing packages.
Allows an app to create windows using the type TYPE_APPLICATION_OVERLAY, shown on top of all other apps.
Allows an application to broadcast a notification that an application package has been removed.
Allows an application to modify the current configuration, such as locale.
Allows applications to access information about networks.
Allows applications to open network sockets.
Allows using PowerManager WakeLocks to keep processor from sleeping or screen from dimming.
Allows access to the vibrator.
Allows an application to expand or collapse the status bar.
Allows an app to create windows using the type TYPE_APPLICATION_OVERLAY, shown on top of all other apps.
Allows an application to clear the caches of all installed applications on the device.
Allows an application to delete cache files.
Allows an application to read the user's contacts data.
Allows an application to initiate a phone call without going through the Dialer user interface for the user to confirm the call.
Allows read only access to phone state, including the phone number of the device, current cellular network information, the status of any ongoing calls, and a list of any PhoneAccounts registered on the device.
Allows an application to read or write the system settings.
Allows applications to access information about Wi-Fi networks.