PreRun.io
Off-Road Navigation, Perfected
Off-Road Navigation, Perfected
Import any GPX route and PreRun automatically finds every turn, grades its severity, and places color-coded waypoints — green for gentle, yellow for moderate, red for sharp. What used to take hours of manual marking happens in seconds.
No other GPS app does this. Free for everyone.
Import routes, detect turns, preview in 3D, and edit waypoints — all free
Preview your route in stunning 3D satellite terrain. Fly through mountain passes, desert trails, and winding roads before you drive them.
Organize all your routes into collections. Import unlimited GPX files, rename, reorder, and manage everything in one place.
Add, rename, move, or delete waypoints on any route. Long-press the map to drop a new one. All changes saved automatically.
Reverse any route for the return trip. Merge waypoints from a teammate's GPX into your own route with duplicate detection.
Export your annotated route with all waypoints as a standard GPX file. Compatible with any GPS app or device.
Available on iOS, Android, and the web. Import GPX files from Strava, Komoot, AllTrails, Gaia GPS, Google Earth, and more.
PreRun Pro adds real-time GPS guidance, Quick Keys, audio callouts, offline maps, Lowrance export, and 10+ more features.
Try Pro Free for 14 DaysScout the course before race day. Memorize every turn and obstacle.
Preview challenging climbs and descents. Know what's coming next.
See the trail ahead. Plan your pace and rest stops.
Study technical sections. Ride with confidence.
Create custom pace notes. Perfect your stage times.
Preview scenic routes. Find the best viewpoints.
1. Import any GPX file from your favorite route planning app
2. PreRun automatically detects and labels all significant turns
3. Choose between satellite view or immersive 3D terrain
4. Fly through your route at any speed
5. Customize turn labels to match your preferences
6. Export and share your annotated route