Plan in 3D. Talk over LoRa mesh. Watch your team's vitals — without a cell tower, a satellite subscription, or a monthly fee per member.
No credit card. No account needed for offline use.
Twelve capabilities no other outdoor app combines — real LoRa mesh, expedition planning, live team vitals, 3D scouting, pre-trek analysis, smart gear checklists, terrain-planned relay chains, channel bridges, a mesh-synced team map, rescue-grade safety, sky and tide planning, and a shareable post-trek replay.
Native Meshtastic LoRa mesh, encrypted end-to-end. Text your group, share GPS and broadcast SOS over kilometers — no cell, no satellite plan, no monthly fee. Run a whole fleet of radios from one phone: save any radio's setup as a reusable profile and push it to every device at once, skipping the ones already in sync. Messages even reach you with the app closed.
Multi-day itineraries with branching stages (alternate refuges, evac routes), per-group stage variants, 20+ specialized roles, and deployment plans that assign a Meshtastic radio to every slot — set up in one wizard. Export the whole rig as a single TrekBundle, optionally AES-256-encrypted, and hand it over phone-to-phone over WiFi.
Every teammate's vitals over the LoRa mesh, fully off-grid — heart rate, SpO2 (judged against altitude to kill false alarms) and elevation. On-device guidance for altitude sickness (Lake Louise 2018), day-by-day acclimatization and when to call a break: clear calls in the mountains, no signal required.
3D Mapbox terrain with a cinematic flyover along your planned trace. Read slope steepness, trail orientation and the altitude profile in real relief, hand-mark avalanche and danger zones, then cache every tile for offline use. Pre-visit the whole climb from your couch.
Before you set off, TrekMesh crunches the whole route: walking time (Naismith), calories to burn, and the liters of water you'll actually need at the real temperature — stage by stage, with difficulty and elevation. The numbers pre-fill from your physio profile, your packed checklist and the forecast, then you fine-tune with sliders.
A 252-item gear database builds your checklist by activity, splits base weight from consumables, and shows your load as a share of your body weight — so you catch an overloaded pack before the trailhead. Tick items off, reuse a list from another trek, and export a printable PDF. Your real pack weight even feeds the on-trail calorie estimate.
Where do you drop a LoRa relay so the whole trek stays in range? TrekMesh runs line-of-sight physics against the real relief — Fresnel zones, earth curvature, tree clutter — finds the dead spots along your route, and chains repeaters back to base camp. It draws the true radio coverage sculpted by the mountains, not a fake circle on a map.
Wire one mesh channel into another — a relay node's channel into your team channel, or two groups together — and TrekMesh keeps relaying messages between them even with the app closed and the phone in your pack. Loop-guarded and encrypted, it's channel routing the standard Meshtastic app simply doesn't do.
Drop a waypoint, draw a hazard zone, send a track or a whole stage — and it appears on every teammate's offline map over the LoRa mesh, no internet involved. Encrypted, chunked so even big polygons get through, and deduplicated. A living team map that keeps updating where Google Maps gives up.
80+ geofenced zone types — crevasse fields, wildfire, tidal danger, abandoned mines, glaciers — that warn you on-device the moment you cross a boundary. Live team GPS relays node-to-node so no one drops off the map, and a one-tap SOS goes out in morse-coded haptics with your position to the whole group.
Sunrise, golden hour and last light, moon phase and illumination — even coastal tides with their coefficient. Pick a bivouac and TrekMesh scores it for dark-sky stargazing (Bortle scale, Milky Way visibility) and points your tent the right way. Know exactly when to set off and when to make camp.
A 10-page PDF report: route map, kilometer splits, heart-rate-colored trace, observed weather, photos pinned on a numbered map with EXIF compass headings, and a zone-passages timeline. Then replay the whole trek in 3D inside the app — every teammate's track, every message, every event, fused from seven live data sources.
Scout. Trek. Return with the whole story.
Drag your stages across a 3D Mapbox terrain. Read slope and orientation, branch alternate refuges, assign roles, and let TrekMesh compute where to drop LoRa repeaters so the whole route stays in range. Pre-configure every radio in one wizard, then export the trek as a single TrekBundle (optionally AES-256-encrypted) — share it phone-to-phone over WiFi, no cloud, no account.
LoRa mesh keeps everyone connected over kilometers — no cell tower, no monthly subscription — and bridges to the internet over MQTT whenever a phone has data. Live team vitals and positions stream across the mesh, zone crossings warn you on-device, and SOS broadcasts in haptic Morse.
A 10-page PDF report you'll actually want to share: route map, kilometer splits, heart-rate-colored trace, observed weather, photos pinned on a map with compass headings from EXIF. Then replay the whole trek in 3D inside the app — every teammate's track, every message, every event.
Most features are free, forever. One affordable Premium plan covers your whole group.
Satellite messengers and trackers bill a subscription per person, every year. For a whole group, that cost multiplies — and never stops.
TrekMesh Premium is €35/year for the whole group — and the free tier already covers the entire off-grid experience.
Everything off-grid you'll ever need.
When the group also wants the internet edge.
By joining, you agree that your email is processed via Resend (United States) — see our Privacy Policy.
🟢 Now in early access. Founding members lock in €35/year for life — for as long as their subscription stays active. Join the waitlist below.
TrekMesh is in active development. Be the first to know when we launch.
No spam. We'll only email you when TrekMesh launches publicly and when subscriptions open. By joining, you agree that your email is processed via Resend (United States) — see our Privacy Policy.