No difference at all. It "cleared" my storage and RAM but there was literal no difference before and after. And it always somehow finds junk files while there's none. Also, after each performance and process of cleaning phone you got a ad that you have to wait until it shows 'x' at the upper right corner. It's like 'the process isn't done until you watch that ad'. I may done something wrong or whatever, but still I don't believe app works