The first time you start the app, it will show an 8-character code, which you will use to securely link the device to your account here. You will only do the linking step once. From then on, the app on the device will show your current route when you start it.
dwMap works on the
Fenix 3 HR,
D2 Bravo Titanium or
Epix GPS watch
routeCourse works on the Garmin Edge 520, Edge 820/820 Explore or Edge 1000/1000 Explore cycling computer, Oregon 700/750/750t or Rino 750/755t GPS.