Didn’t accomplish much

Either keeping space free is something I do myself or the app is so basic it’s pointless. Don’t most people know to empty the trash, reset Safari, which is in the Safari drop down whenever it’s open, and to delete old files when you don’t need them anymore (espirally in iTunes)? I was hoping for a deep cleaning of useless files I don’t know how to reach. This is an app for the most un-knowledgeable of users. For those people it’s a good starter cleaning app.

Richard Bone about Disk Doctor: System Cleaner