As of MyTrails 1.3, Pro-only features include: - ability to display multiple tracks on the map simultaneously - ability to create offline maps with unlimited number of tiles (the free version is limited to 100 tiles when creating offline maps) - ability to display the HUD and permanent scale on the map view - proximity notifications - pause detection - upload to and download from My Trails, GPSies, Dropbox - screen lock
As more Pro-only features are added to MyTrails (and we have a long wish-list), the license price may increase, so if you get in early, not only do you support a thriving project, but you're also saving money :-)
The Pro license does not include access to premium maps (Ordnance Survey, IGN, OS Opendata, etc.), which you can separately purchase subscriptions to via in-app purchases.
Of course, all the features of the free version are also available (read the description for the free version for more details):
★ Full-screen trail map oriented with the built-in compass★ OpenGL Rendering★ Free online maps★ Offline maps★ Offline map creation★ Premium maps★ Record GPS tracks★ Display multiple GPS tracks at once★ Colorized tracks★ Directions★ Waypoints★ Share and archive tracks★ Gestures★ Full tablet support★ MyBackup Integration Support