The most trusted and safe Android optimizer, junk file cleaner, speed booster, battery saver and free anti-virus app with over 740 million mobiles. Clean Master（Boost & AppLock） helps accelerate Ram and clean up junk and cache files! Clean Master(Boost & AppLock) also provides real-time protection with the #1 antivirus engine, and secures private data with AppLock function.
Have you ever encounter the following problems?
◆Your device is lagging and freezes all the time
◆You don't have enough space to take more pictures or install apps
◆Your battery has started draining quicker than ever
◆Your device overheats and needs to cool down
◆You want to lock your photos&messages from prying eyes and noisy friends