The Lite version limitations

Duplicates

The Lite version finds either absolutely IDENTICAL files or VERY SIMILAR photos. It works with photos from iPhoto, Aperture and Lightroom as well.

Similar Photos

The Lite version has some limitations in finding of similar photos. For instance, it doesn't provide comparison options like Color Sensivity or Matching Level.

File Operations

The Lite version CANNOT move or copy photos to another folder, it only moves them to Trash. Also this version doesn't provide a bulk renaming.