Cycling Route Planner with Automatic Hill and Gradient Avoidance
Cyclists want to input a destination and get routes that automatically avoid steep grades above a threshold. Every major cycling app requires manual route drawing and hill-checking. Forum threads show users sharing multi-app workarounds (OSMAnd + BRouter + elevation overlays) to achieve what should be a single feature. E-bike riders and older cyclists especially need this.
Don't build a full cycling app. Build a route planner that does ONE thing: point A to point B with a max gradient slider. Export GPX files that users load into their existing tracking app (Strava, Garmin). BRouter's open-source routing engine already handles the hard math. The moat is UX simplicity and good mobile offline maps.
landscape (4 existing solutions)
The cycling app space has mature tracking and decent elevation visualization, but zero apps offer automatic gradient-constrained routing in an accessible interface. OSMAnd+BRouter proves it's technically feasible but the UX is developer-grade. The opportunity is wrapping BRouter-style gradient routing in a consumer-friendly mobile app.