It DOES work

I updated my Disk Doctor when I got the notice on my updates. Then the app would not open at all. It said that I needed to trash and download again from the App store. When I did that the app store wanted me to purchase it again. So I went to the website for the company that made Disk Doctor and started to write them a note. But they said to restart machine. and so I did and everything worked again and I have the updated version of the Disk Doctor. Ran it and gained 90 GB of space. Wonderful.

v lfl about Disk Doctor: System Cleaner