Scavenger - An augmented reality scavenger hunt for cash prizes
Badge(r)s! - The game all about collecting, sharing and creating virtual swag!
Gift Hunt for WordPress - Online treasure hunt on your WordPress site
Geocaching - Geocaching is the premier app for locating geocaches. This app is available for both the Android and iOS platforms, and it makes locating these popular hidden treasures easy and fun.
Scavengar for iOS - Amped Labs UG limited liability .
Play Munzee - Similiar to Geocaching but requires players scan a QR Codes instead to validate find.