[QUOTE=njkayaker;20270014]The Wahoo app isn't "pinging the cloud" (no one knows what you mean by that).


The Wahoo calulates the route on there website (using maps on their website). It's the same sort of thing that RWGPS does.

Having it done on the phone would require redoing all that programing.[/QUOT

Hobbes stated "app has to ping the cloud - meaning data/wifi is required", so while the use of "ping" likely isn't really what's happening, we know that the device needs data service.

But begs the question of how would the Wahoo smartphone app generate a route with no on device map data base ?. Or, do you (Hobbes) essentially want a method to view maps and generate a route with no data service to access the web based mapping software ?. I think that might work on a tablet, where the screen size is sufficient to use the course generating software, but I have no luck trying this on a iPhone as the mobile app for RWGPS is just hard to use for route planning (IMO).

So I would want to have data service to plan routes. I would then plan a lot of routes and port then to the device.

EDIT, The iPhone RWGPS app doesn't even have a Plan option and of course there's no method to get a course created on an iPhone to a Garmin, so moot issue (for my Edge 1000). The Garmin Connect iPhone app does let you plan a course and you can then get it to a device, but only when it has cell data or WiFi, as it accesses the web to generate the map data.

So as far as I can see you need cell data or Wifi to generate routes/courses and if using a smartphone to create a RWGPS route, you will need to access to the website.