Over a period of time, a lot of junk accumulates inside our smartphones. This may cause our phone to lag in performance or even make it unable to instal new apps. Clean Master comes to our rescue at such times. Clean Master clears the junk files, cleans up remnants of uninstalled apps and helps boost memory. In addition, Clean Master improves performance by optimizing device memory and offering security against viruses, trojans and malware. It may even show you your least used apps, just in case you would like to uninstal them, to free up memory. Developed by Cheetah Mobile, and over 100 million downloads, Clean Master is one of the world’s most reliable companion for Android devices! If you are looking for a thorough, fast and intuitive clean up App for your Android Smartphone, Clean Master is for you.