Photofeeler - Choose your profile photos using hard data
Knoto - Send photos to friends automatically using face recognition
Photo Analyzer - Photo Analyzer is an app that you can use to analyze the image and object in it, which can be in the form of text or image.
WhatsHisFace - Face recognition plugin for Netflix!
DATEnhance - upload a couple of pictures, and go on to rate others.
TrueFace.AI - A facial recognition API with picture attack detection