Duplicate Annihilator for Photos takes on the time-consuming task of comparing the images in your Photos library using effective algorithms to make sure that no duplicate escapes. (Photos is Apple's replacement product for iPhoto and Aperture, introduced in OS X 10.10.3 and later.) Duplicate Annihilator detects: - Duplicates - Imported thumbnails - Imported thumbnails of faces - Missing image files - Corrupt JPEGs