HourFace is a 99 cent iPhone app that starts with a portrait photo and then performs some magic. First the photo is uploaded. In just moments, a 3D animated version of the face is downloaded. Then lines and wrinkles begin to appear and the face gradually becomes older looking. Turn the phone upside down, and time goes backwards. The face becomes younger.

See a demo of HourFace in this YouTube video. The app runs on iPhone or iPod Touch devices.