Kahoot! is a classroom response system which creates an engaging learning space, through a game-based digital pedagogy. Kahoot! is an easy-to-use blended learning platform which works on any device, making the classroom interactive, encouraging both educators and learners to ask great questions.
SCVNGR is a game all about going places, doing challenges and earning points. The game is played from a custom app on iPhone and Android as well as via SMS. It is not a text message scavenger hunt. Instead of riddles to guide you to a place, SCVNGR concentrates on completing challenges at a particular location.
M. Al-Sammarraie, F. Siewe, und H. Zedan. CASEMANS '10: Proceedings of the 4th ACM International Workshop on Context-Awareness for Self-Managing Systems, Seite 11--19. ACM, (2010)