Scavenger - An augmented reality scavenger hunt for cash prizes
ShutterSpots - Find & share photo locations nearby & all over the world!
Gift Hunt for WordPress - Online treasure hunt on your WordPress site
Photo Find - Navigate to the exact spot a photo was taken
Play Munzee - Similiar to Geocaching but requires players scan a QR Codes instead to validate find.
Holo - Mix holograms into videos & photos in Augmented Reality