VisiPics - VisiPics does more than just look for identical files, it goes beyond checksums to look for similar...
Cisdem iPhoneCleaner - Safe iPhone cleaner to clean iPhone, iPad, iPod touch junks to free up space and backup iPhone Mac.
dupeGuru - dupeGuru is a tool for finding duplicate files on your computer.
PhoneClean - PhoneClean is the best and even free iPhone cleaner software for all your iPhone cleaning, maintaining and privacy protecting needs. It brings you the new iPhone, iPad experience that you will appreciate every day.
Pixiple - Find images similar in pixel and/or metadata content
CleanMyPhone - iPhone Cleaner is designed to free up storage space on iOS devices by removing junk files and Documents & Data, other data etc.