This Doesn't Clean Junk Files you need to turn on some very dangerous settings on it even if i turn it on it doesn't work,so i clean junk files on my own with my settings app i don't like it this app is useless and i don't like how phone booster works, becuase this app doesn't force stop the app the has been selected. much problems on this app i recommend this app to improve by the developer... add something.