Why planning belongs on a big screen
Drawing a route on a phone is possible, but it is not comfortable. The map is small, you never see the whole ride at once, and dragging a waypoint along a 300 km (185 mile) line with your thumb is an exercise in patience. Planning goes much better sitting down, on a screen where you can see the valley you are crossing and the pass that comes after it at the same time.
That split of roles is deliberate: the web to prepare, the phone to ride. Both share the same account and the same routes, so what you put together on a Thursday evening is in your pocket on Sunday morning.
