Battery Guard - Make Your Phone Better

After a period of using your phone, you will find that your phone performed slower and slower or run out of your battery at short time. It's because lots of trunk files in your phone and some of the app run in the backend in your phone ever you think you are not using them. This app will protect your out of the junk file and backed running app that make your phone perform better and better, not make your phone smoothly but also make your battery with longer life.