VisiPics - VisiPics does more than just look for identical files, it goes beyond checksums to look for similar...
Gemini Photos - Clean up your Camera Roll
dupeGuru - dupeGuru is a tool for finding duplicate files on your computer.
Bread - Bread is a buy now and pay later platform that lets you buy things in easy installments.
Pixiple - Find images similar in pixel and/or metadata content
Cisdem iPhoneCleaner - Safe iPhone cleaner to clean iPhone, iPad, iPod touch junks to free up space and backup iPhone Mac.