First Test Failed to Work
I bought the full version by paying $2.99 in-app, and then I tested it on an app that I’d bought through the App Store. It did not delete the app, telling me that I needed to locate files in the Finder and delete them manually. I then opened up another app delete program that I’ve been using for years (not available on the app store) and it deleted the app without a problem.
hughbd about Uninstaller-OS Cleaner