Game Planner Digital Maps are designed to work with the Avenza Maps mobile application. This system allows your Android or Apple mobile device to function as a GPS with no need for cell service or an internet connection. The Avenza Maps app is a free download and available on Google Play and Itunes. Once the maps are loaded to the PDF Maps app, simply open them and view your detailed topo map on your mobile device. You will have the ability to see your location on the map, record waypoints, track your path, and measure distance. Each Digital Map is divided into tiles that provide complete and detailed coverage of your chosen unit.