Pretty good. Free and gets job done.

Works pretty good. The interface is very similar to Gemini and dup finding result is absolutely the same. I did a test creating duplicates (so I exactly know what needs to be cleaned) and the app did a good job. However I take 1 star because it leaves some duplicates undiscovered. DupeGury PE, on the other hand, detects all of the dups and removes them, making it the best free alternative. However the dupeGuru interface is where it falls short.

ivtreo about The Duplicate Finder