This development news arrives on the context where Facebook was under pressure following a scrutiny on its own technology to implement facial recognition capabilities as it acquired Face.com. Nevertheless, Facebook did stop the implementation, and instead added a new functionality which allows automatically suggestions of tagging of friends in photos.
The developer has further explained in a blog post, how the app will work after leaving beta stage.
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Facedeals - Check-In with Your Face from redpepper on Vimeo.
The Facedeals app must be authorized via your Facebook account. With your help, the app verifies your most recent photo tags, using those to map the physical appearance of your face. Our custom-developed cameras then simply use this existing data to identify you in the real world. Personalized deals can now be delivered to your Smartphone from all participating locations—all you have to do is show your face.