PhotoSweeper is a virtual mop for your images. The app lets you get rid of duplicates, but you are in control of what duplicates mean exactly. Version 3 is a free upgrade for licensed users and it comes with a few nifty new features.
Ever since Apple introduced the Touch Bar, the first new feature is obligatory: Touch Bar support. As I lack the new portable, I tried it out with Touché, a software-based copycat that runs on any macOS Sierra Mac.
No matter how lovely Touch Bar support may be, the one feature that makes your heart beat just a little bit faster will be “Side to Side” Compare mode. According to the people at Overmacs, it’s unique to PhotoSweeper. The Compare Side by Side mode lets you compare the contents of two folders with each other or find similar photos to a single image. The new functionality has some unexpected benefits. For example, you can find duplicates between two groups of photos while ignoring those inside each group.
Another example: if you compare a drive containing backups of your images with your online photo library, you know everything has been duplicated perfectly if Compare finds that all photos are duplicates of each other. Here, you can also use the “Lock Photos” option to protect previously sorted folders or libraries. Finally, you’ll also be able to quickly, visually check if the files have been backed up to an identical subdirectory, which is probably what you want in order to find them back later on.
Using PhotoSweeper 3 for a backup reliability check doesn’t need to take ages as I noticed a considerable overall performance improvement. Cleaning out your image libraries may still take up a lot of your time because you need to visually check each photo individually. The Restore Last Session button in the launch window of the app is your lifesaver. It literally instantly takes you back when clicking it to your last results list that got automatically saved.