MapRun is a smartphone app, that is used to participate in an orienteering event.

The app will show a map on your screen with the orienteering course marked on it.

As you navigate around the course the app will record your GPS track and which controls

you visit.  When you finish your course the app will produce your result which is added to a results

list so that you can compare how you did with other participants.  Navigating using the map on the phone screen can be a bit tricky, especially if you are running, so there will usually be an A4 size paper map that can be printed off to make navigation easier.