Clean Master, the best free Android optimizer, junk files cleaner, speed booster, notification cleaner and free anti-virus app is trusted by over 740 million mobiles. Clean Master (Boost & Antivirus) helps boost Ram, clean up junk files, clear cache and clean junk notifications! Clean Master(Boost & Antivirus) also offers real-time protection with the #1 antivirus engine, protect your privacy and android phone.Clean Master(Boost & Antivirus）Highlights:★ NOTIFICATION CLEANER Block and clean junk notifications. Make your phone stay away from trash notifications!★ JUNK FILE CLEANING Clean up junk files, clear residual files and cache to free up storage, boost speed and improve the performance of your Android device. Keep your phone clean and fast with Clean Master.★ MEMORY BOOST Boost and speed up your Android phone, free up RAM and save battery with our andriond booster. Create 1 Tap Boost shortcut to speed up android device easily from your home screen.★ ANTIVIRUS Keep your android safe and secure with Clean Master free antivirus engine ranked #1 by AV-TEST! Scan the system, pre-installed and user-installed apps to keep your device safe from viruses, Trojans, malwares, vulnerabilities, adwares and spywares. Keep your privacy safe with antivirus feature in Clean Master.★ CPU COOLER Cool down temperature and reduce CPU usage by stopping overheating apps and extend battery life!★ BATTERY SAVERAnalyze battery status and hibernate running apps to save power, extend your battery life in 1 tap with Battery Saver.Other features to optimize your android phone☆ CHARGE MASTER -Smart charge shows estimated remaining charge time ☆ APPLOCK-Protect your privacy with your own AppLock PIN code or pattern☆ PRIVATE BROWSING -Clean all your browsed data☆ iSWIPE-Quick access to other apps and tools☆ APP MANAGER -Back up, uninstall apps, move apps to SD card☆ GAME BOOSTER-Boost your game speed by 30%+ Clean Master, the best android cleaner & booster will optimize your phone performance, keep your device fast and clean, and make your device the best android phone.