Amazingly helpful

I accidentally imported the same photos twice into the Photos app from my phone, and the app helped to go through all of my photos and accurately delete the duplicates. You literally press a few buttons, look through to make sure everything’s fine, and you’re done. It lets you check through multiple times, so you don’t accidentally delete pictures you still wanted or anything.

TannerB655 about Photos Duplicate Cleaner, v1.7