AVG Cleaner - a Handy app to clean your device. It was created with the purpose of optimizing the operation of your device, and delete files that you simply don't need. I'm afraid that the app will decide that you don't need? Don't worry, speaking of not needed files there because the folder left over from the games that you have long been removed, or the cache which is stored in the phone memory after web surfing. You will also be able to specify which folders you shouldn't touch this app.