Theres a reason its free...

When I run it it stops and says it needs permission to conitniue, and when you click grant permission it brings up a folder view window. There is no explanation as to what it wants me to do, and there is no help or support available to help you figure out what the issue is. Luckily I am only out a little time and no money.

Also note that this appears to be just a trial and you have to do an in app purchase to actually perform any work. However since the app doesnt actually work for me I am unable to confirm that, and I can find nothing on their website that explains when the in app purchases are actually needed.

Fatalresponse about Tunes Cleaner