Figure 2From: Exergames for health and fitness: the roles of GPS and geosocial appsGamification features in EpicMix at Vail Resorts: pins (achievements) and leaderboards. The geolocation technology used in EpicMix is RFID (radio-frequency identification) rather than GPS. Please refer to ‘Additional file 1’ for a detailed description of this product.Back to article page