This app is a great way to get ideas for sets when I can't think of a good one. The app isn't perfect however, as it frequently suggests weird sets like 4x175 free (when it would make more sense to just do 4x200 free). I still really like the app though, because it gives me ideas for sets when I can't think of one. My suggestion is to use the app to get an idea for a set, but make slight adjustments if the set seems a little weird.
This is a good idea for an app