Great companion app with useful functionality. Fully integrates with most aircraft autopilot systems, but may not work with some that have their own operational plugins (x737, for example). I would give it 5 stars if it werent so unstable. The app crashes my iPad Air repeatedly during use (restarts my actual iPad, not just the app). Happens especially when moving/zooming the map. Fix that and its a winner!
BJP0013 about X-Mapper Pro (for X-Plane Desktop)