Scavenger - An augmented reality scavenger hunt for cash prizes
Quadbot - Build your own Robot
Treasure Hunt - A scavenger hunt app for kids, powered by machine learning
MODI - Create anything you want with robotics of things
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.
Bitsbox - Monthly code projects for kids