Cleaned 20,000 Pics

I just used this app with OS 10.9.5 to clean up 25,000+ pics on an external hard drive. The app was fast and accurate, removing over 15 GB of duplicated images. I have not used any other apps in the past, but I did compare this app with another photo-duplicate-app (DupeGuru) before making my initial clean-sweep. The other app took about 10 times as long to read my files and crashed before it finished. This app read my files and moved my files to the trash before the other one was even finished reading. I found out later that it did not catch all of my duplicates, but for a free and fast app, it peformed much better than I had even hoped.

Archibald Lux about Photos Duplicate Cleaner