a.placebetween.us - Find a meeting point based on place type
Photofeeler - Choose your profile photos using hard data
Zenly - Zenly is a GPS tracker to locate your friends in realtime.
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.
Works For All - Find a central meeting place for everyone in the group
DATEnhance - upload a couple of pictures, and go on to rate others.