Trailmark ADV
Backcountry navigation that works where the signal doesn't.
Offline topo maps, trip recording, and one-tap waypoints for ADV riders, overlanders, and dispersed campers — built by riders, not mapping professionals.
Coming to the App Store
The whole backcountry, in your pocket
USGS topo and satellite with terrain shading, plus the overlays that matter off-pavement: USFS roads, trails & MVUM, BLM public land, water, and recreation sites.
Offline for any state — or any box you draw
Download all 50 states with honest size estimates, or frame exactly the area you're riding with a detail slider. Update packs in place when you want fresh tiles.
Layers tuned for the dirt
Per-layer opacity, drag to reorder, and one-tap Quick Sets for Overland · Moto/OHV · Hike · Camp. Tap any road, trail, or parcel to identify it — including who owns the land.
Plan it, then stay on it
Drop points and snap to roads, get the elevation profile automatically, then follow any saved line with off-route alerts that buzz before a wrong turn becomes ten miles.
Capture everything without stopping
Gloves on, moving, bad light — Trailmark is built for the moment, not the desk.
Mark anything, three ways
One tap at your GPS position, long-press anywhere on the map, or just ask Siri — hands on the bars. Add photos, notes, icons, and colors; get a 4-day forecast right on the waypoint.
Record the whole ride
Live stats on screen and on the Dynamic Island, pause/resume without phantom miles, then review distance, climb, moving time, and speed & elevation graphs.
Trips tie it together
Start a trip and every capture collects itself. End it, review everything in one place, keep what matters — and share the whole weekend as one GPX.
Leaving the grid shouldn't mean joining one
Everything lives on your phone. Move it whenever you want.
No account. No cloud. No tracking.
There is no server. Your waypoints, tracks, and photos never leave your device unless you export them yourself.
One-file backup
Export everything — waypoints, tracks, trips, photos, settings — as a single file. Restore it on a new phone and nothing is lost.
Plays well with others
Import GPX, KML, and KMZ — including your old Gaia data with icons, colors, and elevation intact. Export standard GPX your riding buddies can open in any app. UTM, DMS, or decimal — your call.
Paid once. No subscription. No account.
Built for the ride, not the renewal.
Trailmark ADV is a standalone app — it depends on no service we run, so it can't be turned off, rate-limited, or paywalled later.