TrekGuard: Hiking Safety & SOS

Offline trek safety: altitude tracker, SOS alerts & altitude sickness check.

TrekGuard is the Nepal trekking safety app built for the Himalayas — fully offline. Track altitude, check for altitude sickness, navigate with an offline compass, and send SOS alerts -- all without internet or cell signal.

Whether you are trekking to Everest Base Camp, the Annapurna Circuit, Langtang Valley, or Manaslu, TrekGuard works when other hiking apps fail. No Wi-Fi. No cell signal. No problem.

OFFLINE ALTIMETER AND BAROMETER
Track your real-time altitude using GPS and your phone's built-in barometer. TrekGuard fuses GPS and barometric data through a Kalman filter for accuracy that standalone altimeter apps cannot match. Monitor elevation gain, atmospheric pressure trends, and ascent rate with precision -- no internet connection required.

OFFLINE COMPASS AND GPS BACKTRACK
Never get lost on a remote trail. TrekGuard includes a digital compass that works without signal, and a GPS Backtrack feature that records your route so you can retrace your steps -- even in whiteout conditions or dense fog.

ALTITUDE SICKNESS SELF-CHECK
High altitude is dangerous. TrekGuard includes a medically-referenced self-assessment tool for Acute Mountain Sickness (AMS) and altitude sickness prevention. Answer a quick checklist to detect early warning signs of altitude sickness, HACE, or HAPE, and get a clear safety recommendation before symptoms worsen. No other hiking app offers this.

SOS EMERGENCY TOOLS
When rescue teams need your location, TrekGuard delivers:
- GPS via SMS: Send your exact coordinates to emergency contacts with one tap, even on minimal signal.
- Morse Code SOS Flashlight: Signal for help visually using international distress patterns.
- Emergency Whistle: Maximum-volume audio alert that works even in silent mode.
These offline emergency tools work in dead zones where other hiking and trekking apps cannot.

TREK MODE WITH LIVE TRACKING
Start a trek session and TrekGuard records your route on a live map, tracks elevation profile, distance, pace, duration, and elevation gain in the background with minimal battery drain. Pause, resume, and review your full trek history with detailed session summaries.

ALTITUDE-STAMPED TREK PHOTOS
Take photos stamped with your GPS coordinates, altitude, and location data. Share proof of your summit with friends and family. Photos are saved locally -- no data is uploaded.

TREK ITINERARIES WITH ALTITUDE PROFILES
Access pre-loaded itineraries for Nepal's most popular treks with day-by-day altitude profiles. Set departure dates, plan your acclimatization schedule, and know exactly what elevation gain lies ahead. Build custom itineraries for any route.

HYDRATION TRACKER AND FIRST AID GUIDE
Track your daily water intake against altitude-adjusted goals. Access an offline first aid guide covering trekking injuries, frostbite, hypothermia, and high-altitude emergencies. Stay healthy above the clouds.

WAYPOINTS, GEAR CHECKLIST, AND OFFLINE MAPS
Mark camps, water sources, and trail junctions as GPS waypoints. Pack your bag with altitude-aware gear suggestions so you never forget essential equipment. Download offline maps for navigation when there is no cell signal.

WHY OFFLINE MATTERS
In the Nepal Himalayas, cell signal disappears past 3,000 meters. Most hiking and trekking apps stop working at that point. TrekGuard is built differently: 100% offline-first. Download once, use anywhere. No internet required, ever.

PERFECT FOR
- Trekkers on Everest Base Camp, Annapurna Circuit, Langtang, Manaslu, and Dolpo routes
- Mountaineers and high-altitude climbers
- Solo backpackers in remote regions
- International hikers visiting the Nepal Himalayas
- Anyone prioritizing high altitude safety in the backcountry

Download TrekGuard and trek smarter and safer -- even when the signal is gone. Free. Offline. No subscription.