Facebook just announced and launched the Moments app. The new application uses facial recognition software to scan it room roll of your mobile.
It will recognize the faces you have as friends on social network even if you allow it will share the photos. 
How does it work:
The application will scan your phone gallery. Moms will locate the faces of your Facebook friends, and then notify them of a private exchange.
If you find many of your friend's photos, you can send them all together as a package.
Photos are stored in a private album that only you and the recipient can see.
If the app recognizes more than one face, it will let you know and ask you to share the photos in one team.
Moments has just been released for Android and iOS.
https://vimeo.com/130380325
