One programmer’s junk is another user’s treasure.
I have this app, and I have a bad digital hoarding habit. I can’t quite trust it to use its discretion to clean up my hard drives, and I don’t have time to review everything that it considers junk.
That said, I make daily use out of the “Free Up memory” feature, so I do get some use out of it.
There is probably something free out there that will do the same thing; I just haven’t bothered to look for it since I have this.