Microsoft has a TwinsOrNot app for Windows Phone devices
 

Microsoft's been big on facial recognition lately. After promising that the technology can be used as a log-in option for Windows 10, it launched a website that guesses your age based on your features (HowOld.net) and another that takes a stab at whe...

http://www.engadget.com/2015/07/15/m...=rss_truncated