Displays your trak or GPX file on a map along with your position and comparitor location. Tap speed or altitude to show relavent graph view (altitude graph will be that loaded from the comparitor file).
To start a ride tap GO! or start here if already using a comparitor trak or GPX file. To show the comparitor view tap distance where you can see your performance against the target speed (yellow) or comparitor file (green). To end and save a ride tap distance to bring up the stop options.
The map can be dragged and pinched to zoom. Tap the center icon at top left to re-center the map on your current location.