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.
Tap Find Me to center on your location. Double-tap to enter Chase Cam — a heading-up follow camera with no navigation, no audio, just you and the map.
Every geotagged photo from your device library, pinned to the map as clustered markers. New photos auto-appear as you take them. Photos stay on-device.
Total runs, total distance, longest run, unique routes driven, current daily streak. Aggregated locally — nothing sent to any server.
Real-time navigation with audio waypoint callouts so you know what's coming. Cloud sync across every device. Offline maps. Mesh networking when there's no signal. The whole list is below.
Turn-by-turn guidance with the next 3 waypoints visible, configurable run circles, speed-based zoom, and a heading-up camera.
"Right 3 in 200 feet." Spoken turn-by-turn callouts in 28 languages with on-device ML translation. Choose voice, language, and speed.
Every collection, route, waypoint, and setting follows you across iPad, iPhone, Android, and the web in real time. No manual export.
53 one-tap waypoint shortcuts — "danger", "wash", "gate", "fuel". Customize the 14 on-screen slots, bind to a Bluetooth keyboard, drop pins while driving without taking your eyes off the trail.
PreRun runs its own GraphHopper instance for off-road routing. Pick vehicle type, offroad preference, trail class, surface, seasonal availability — get a route that uses dirt roads and trails, not pavement.
Download whole regions before you leave service. Mapbox satellite + terrain tiles, USFS / BLM trail overlay, route lines — all cached for navigation with zero connectivity.
See your whole crew on the map in real time. Names, speeds, headings, colored dots. Persistent group code so multi-day trips just work — no re-sharing every morning. Optional public discovery for organized rides.
When there's no cell or wifi, group locations propagate over a LoRa mesh radio. 3–6 mile range per node, no infrastructure required. No other off-road app does this.
Switch to 1–6 pacenote scale (1=hairpin, 6=straightest) with rally-style callouts. Off-course warnings, speed zones, and checkpoint alerts for stage racing.
Live NEXRAD radar overlaid on the map. Audio callouts for destination forecast, severe alerts along your route, and incoming precipitation 20 miles ahead. Powered by NWS.
Route to any destination without a GPX file. Search by business, POI category (gas, food, camping), lat/lon, or trail name. Long-press the map. Tap a group rider's puck. PreRun handles the rest.
Set your fuel range. Build any route longer than it. PreRun automatically finds and inserts gas stops along the way — iterative, so a 900-mile route with a 200-mile range gets four stops added for you.
Nearby Wikipedia landmarks called out automatically as you drive. Historic sites, geographic features, small-town backstories — a rolling history lesson on every road trip.
Built for anyone who needs navigation beyond the pavement
Scout 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.
Six steps from GPX file to complete route annotations