DU Speed Booster, Cache Cleaner, Battery saver

DU Speed Booster New Cooler, Trash Cleaner, app lock, battery saver free. DU Cache Cleaner - DU Speed Booster & Cleaner. 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：.