About this app
Trusted by 230 million users, DU Speed Booster & Cleaner can clean cache and junk file, boost your phone to make phone faster, making it the best cache cleaner, memory booster, DU Speed Booster & Cleaner Total keeps your Android device safe, clean, and fast to be always just like ”New”.
DU Speed Booster & Cleaner is the only all-in-one speed booster, trash cleaner and antivirus app that optimizes your background apps, memory space and junk(cache) files. While keeping your device safe from virus and trojan, that can secure your private data with the AppLock function.
DU Speed Booster（Antivirus & Junk Cleaner）Highlights：
► Phone Boost & Memory Boost - The best phone speed booster
Clean up memory (RAM) and optimize phone speed by removing redundant background tasks.
Stop stealthy running apps, Aims to speeding up your android device.
We also have phone booster shortcut, One-Tap Boost directly from your home screen makes it easy to optimize.
► Junk File Cleaner - Small yet powerful cleaner master, space saver
Free up space and improve the performance by intelligently scan the junk files.
Such as residual files, cache, temp files, obsolete apks and other big files.
► Security & Antivirus
Scan installed apps, memory card content, and new apps automatically.
DU Speed Booster & Antivirus latest protection technologies against viruses, adware, malware, trojan and more.
► Network Boost
One-tap comprehensively detects network status, including Wi-Fi security, download speed, upload speed, networking devices. Close background network-occupied applications, to ensure that the using apps is in a better network condition.
► CPU Cooler - Detect and clean apps that cause overheating
Continuous monitoring temperature changes, detects apps highly consuming CPU and starts a cooling progress, effectively reduce the phone temperature.By memory boost, it can cool down Android device as fast as possible.
► 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.
► Smart Charge
Display charge status in real time, accurately estimating remaining charge time.
Display notifications on the screensaver to never miss friends' messages.
► DU Swipe
Help users quickly switch applications and system settings!
Find us online:
Facebook: http://facebook.com/duapps
Twitter: https://twitter.com/duapps
DU Speed Booster & Cleaner is right here to deal with all issues that slow down your Android device performance! DU speed Booster is here to help you to Clean and Speed Up android device, android system or in one touch optimize all files on your tablet or smartphone! It will help you master and optimize your background apps, memory space, junk (cache) files and battery power, as well as inspect apps permissions and secure your phone from viruses.
Help fight against deceptive ads
DU Group is dedicated to providing a safer mobile experience for our global users, so we’re committed to fighting against misleading downloads. We’ve found that some ads/redirected pages might be malicious promotion from unknown channels. If you come across one of these ads, you can help us to take them down. Please send us the link and screenshots of these ads at spam_report@duapps.com. We appreciate your kindly help.
Our app uses Accessibility services under certain condition to enable advanced functions and improve your experience.
App Permissions
Allows an application to collect battery statistics
Allows an application to find out the space used by any package.
This constant was deprecated in API level 21. No longer enforced.
This constant was deprecated in API level 8. The restartPackage(String] API is no longer supported.
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 applications to open network sockets.
Allows applications to access information about networks.
Allows applications to change network connectivity state.
Allows an application to write to external storage.
Allows an application to read the low-level system log files.
Allows applications to enter Wi-Fi Multicast mode.
Allows applications to change Wi-Fi connectivity state.
Allows applications to access information about Wi-Fi networks.
Allows an application to call killBackgroundProcesses(String].
Allows an application to modify global audio settings.
Allows an application to modify the current configuration, such as locale.
Allows an application to delete cache files.
Allows using PowerManager WakeLocks to keep processor from sleeping or screen from dimming.
Allows an application to read or write the system settings.
Allows applications to connect to paired bluetooth devices.
Allows applications to discover and pair bluetooth devices.
Allows applications to write the apn settings.
Allows applications to read the sync stats.
Allows applications to read the sync settings.
Allows applications to write the sync settings.
Allows access to the list of accounts in the Accounts Service.
Allows an application to receive the ACTION_BOOT_COMPLETED that is broadcast after the system finishes booting.
Allows access to the vibrator.
Allows modification of the telephony state - power on, mmi, etc.
Allows mounting and unmounting file systems for removable storage.
Allows an application to clear the caches of all installed applications on the device.
Allows an application to broadcast sticky intents.
Allows an app to create windows using the type TYPE_APPLICATION_OVERLAY, shown on top of all other apps.
Required to be able to access the camera device.
Allows an application to request installing packages.
Marker permission for applications that wish to access notification policy.
Allows an application to read from external storage.
Allows an application to change the Z-order of tasks.
