Watching these guys present now . . .
From their website:
REWARDS THROUGH ADVENTURE
Seek is an augmented reality, location-based app that is free for users and allows them to win real prizes from local and national brands. Companies can use the app to create incredible augmented reality consumer engagement campaigns, as well as drive customers to physical business locations. Users physically go to geo-targeted Seek Chest locations to open chests and have a chance of winning real prizes. The app is available worldwide.