About this app

DU Speed Booster New free to use speed booster app lock, battery saver free
Updated Layout.
Improved security features.
Updated Device layout.
Still in progress to update & improve our user security.



DU Speed Booster（ App lock Battery saver & Junk Cleaner）Highlights：

► Junk File Cleaner - Small yet powerful cleaner master, Improve performance by intelligently scan the junk files. Such as residual files, cache, temp files, obsolete apks and other big files.space saver Free up space.

► Apps Manager - Scan and clean redundant APK files
Smart Task Manager transfer apps, games or files, move to SD card easily without scrolling from one screen to another one! App Manager for moving internal storage apps to external SD card will give you a lot of free space on your tablet or smart phone.

► AppLock - Guarding your privacy is easier than ever
The fastest & safest applock for android in the world; Security tool, easy to reset password.
Prevent others from accessing your important private apps such as Facebook, Instagram, SMS, Gallery and so on.

► Battery Saver
Display charge status in real time, accurately estimating remaining charge time.
Display notifications on the screensaver to never miss friends' messages.

► Safe Browser
Can run as browser to browse what you want, but most important part is this browser will not save your official data and will clear all history on exit, that you will tracked from any one about what you have browse in this safe browser.

► Wifi Security
It include privacy protection,
Prevent other peoples from viewing your list of networks by only enabling them,
Data Protection only allow connection to hotspots when they should be available (asking you the first tie you connected to a new hotspot)


Our Updated security features are coming soon.
We are always busy to improve it as possible.

Team Du Speed Booster

App Permissions

Allows an app to use fingerprint hardware.
Allows an app to create windows using the type TYPE_APPLICATION_OVERLAY, shown on top of all other apps.
Allows an application to call killBackgroundProcesses(String].
Allows an application to write to external storage.
Allows an application to find out the space used by any package.
Allows an application to clear the caches of all installed applications on the device.
Allows an application to receive the ACTION_BOOT_COMPLETED that is broadcast after the system finishes booting.
Allows an application to read from external storage.
Allows mounting and unmounting file systems for removable storage.
This constant was deprecated in API level 21. No longer enforced.
Allows applications to access information about Wi-Fi networks.
Allows applications to change Wi-Fi connectivity state.
Allows applications to open network sockets.
Allows using PowerManager WakeLocks to keep processor from sleeping or screen from dimming.
Allows applications to access information about networks.
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 request installing packages.
Marker permission for applications that wish to access notification policy.
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.
Allows an application to collect battery statistics
Allows access to the vibrator.
Required to be able to access the camera device.
Allows an application to expand or collapse the status bar.
Allows an application to initiate a phone call without going through the Dialer user interface for the user to confirm the call.
Allows an application to request deleting packages.