Just downloaded a free app on my Android phone called Polaris Snow Trails. It is a snowmobile trail overlay on Google Maps, so it uses the GPS on the phone to do plotting. Also has a weather overlay, radar, snow depth, services, and of course, Polaris Dealers.
It has a tracking function that you can use to save a route. You can also save waypoints.
The trail maps are pre-loaded, and the app is free.
It has a tracking function that you can use to save a route. You can also save waypoints.
The trail maps are pre-loaded, and the app is free.