All features

Built for Nepal Himalaya — works worldwide too.

15+ tools tuned for teahouse treks and high passes in Nepal — EBC, Annapurna, Langtang, Manaslu, and more. Same altitude, weather, GPX, and safety stack on Alps, Rockies, Andes, and backcountry after setup. Offline core needs map packs and a weather pull before signal ends.

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01GPS + barometer + map elevation

Real-Time Altitude Tracking

Blends GPS, barometer, and cached ground elevation (outlier rejection, geoid handling) for a steadier readout — offline when device sensors plus saved elevation points or manual calibration are available.

Use case: Approaching Thorong La Pass at 5,416m — TrekGuard shows you're in the Extreme zone with +680m gain today, triggering an ascent rate warning.

Blends GPS altitude, barometric height, and terrain DEM anchors; accuracy depends on satellite fix and device sensors

5 color-coded altitude zones: Lowland, Moderate, High, Very High, Extreme (5,500m+)

Manual calibration from trail signs when terrain API is unreachable

Today's elevation gain, loss, ascent rate, and spike-filtered stats

02Detailed mountain forecasts

Weather Intelligence

Current conditions, hourly and 7-day outlook, trek safety verdicts, and altitude-adjusted temperatures — needs a recent network pull for fresh model data.

Use case: Example: at Dingboche (4,410m), a caution verdict might flag incoming precip and a lower freezing level — you still confirm with sky, lodge reports, and your guide before changing plans.

Trek Safety Verdict combines model data: storms, precip type, wind chill, UV, daylight window, recent pressure trend — still verify sky and local reports

4-band altitude lapse rate showing temperature at your elevation with 'YOU' badge

Health panel: freezing level, UV index, frostbite risk, hydration guidance, estimated SpO₂ by altitude

Animated rain, snow, thunder particle effects on the weather hero card

03GPS activity-style tracking

Trek Recording

Record a trek with live stats, background GPS (OS + battery limits apply), voice altitude nudges, route replay, and shareable summaries.

Use case: Recording your Annapurna Base Camp approach — voice alerts announce every 500m altitude milestone while you keep your phone in your pocket.

Live distance, speed, pace, max speed, elevation gain/loss, and duration

Real-time GPS route drawn on MapLibre outdoor tiles with follow mode

Background recording tuned to cut storage churn on multi-hour treks

Route replay — scrub a finished trek's timeline over real map tiles (online, or an offline pack covering the route) to relive position, altitude, and speed; idle gaps auto-compressed so playback never stalls

Shareable summary cards with route map and stats when you finish a recording

Completed treks saved to on-device history — export a backup file in Settings when you change phones

04Lake Louise scoring system

AMS Symptom Checker

Uses the common Lake Louise AMS questionnaire for self-assessment and logging — educational only, not a diagnosis and not a substitute for a medic.

Use case: Above Namche Bazaar, you score 5/15 — Moderate AMS. TrekGuard advises stopping ascent and reassessing in 24 hours before continuing to Tengboche.

Score headache, nausea, fatigue, dizziness, and sleep quality on a 0-3 scale

Three severity levels: Mild (monitor), Moderate (stop ascending), Severe (descend immediately)

Estimated SpO₂ ranges by altitude zone — educational, not measured from a sensor

Full assessment history timeline to track symptom progression

05Compass-guided return path

Backtrack Navigation

Set an anchor point at your lodge or trailhead, then navigate back along your actual walked path with compass bearing, distance, and estimated time of arrival.

Use case: You ventured off-trail to a viewpoint near Ghorepani. Tap the compass to follow your exact breadcrumb trail 2.3km back to your lodge before sunset.

Trail breadcrumb recording with GPS point filtering and deduplication

Compass needle with 2° dead-zone stabilization pointing to your anchor

Reversed trail routing follows your actual path, not a straight line

Live ETA based on actual trail distance, not crow-flies distance

06Distress signals & contacts

SOS & Emergency Tools

SOS flashlight patterns, speaker whistle tone, quick-dial saved contacts, and GPS location sharing via SMS — with an offline outbox that holds undeliverable texts until signal returns.

Use case: Lost in fog near Machhapuchhre Base Camp — activate SOS flashlight signals while sharing your GPS coordinates via SMS to your emergency contact.

Morse SOS flashlight pattern — visibility depends on battery, weather, and distance

Emergency whistle tone on the device speaker — carry a real whistle on serious treks

Quick-dial personal and local service numbers you add or import (no pre-loaded rescue directory)

One-tap SMS with GPS coordinates when your phone can send texts

Offline SOS outbox: a text that can't send is saved, not lost — you're prompted to retry when signal returns, with a 'location recorded N ago' note if time has passed

07Offline-ready outdoor maps

Interactive Map & Offline Packs

MapLibre map with OpenFreeMap vector tiles — no API key, no usage limits. Download any custom area you frame on the map, plus curated Nepal trek-region packs, for fully offline navigation. Import GPX for any mountain worldwide and follow it live.

Use case: Frame any area on the map and download it in Kathmandu — or grab a curated Everest pack — import the EBC GPX, then follow your GPS dot on trail with cell data optional.

OpenFreeMap vector tiles with trails and paths — keyless and unlimited

GPX route-following: ~100m off-trail alerts, remaining distance, Naismith ETA, and the next village/camp/pass ahead

Outdoor, Bright, and Light map styles

Download any custom area or a curated region pack — no connection needed once saved

08Real-time heading & bearing

Digital Compass

Full-featured digital compass with cardinal/intercardinal directions, GPS coordinates, live altitude display, and bearing-to-nearest-waypoint with turn guidance.

Use case: Standing at a trail junction near Langtang village — the compass shows bearing 42° NE to your next waypoint with a 'turn right' indicator.

Real-time magnetic heading with smooth rotation and cardinal directions

GPS coordinates and current altitude displayed alongside heading

Bearing-to-nearest-waypoint with left/right turn guidance arrows

2° dead-zone threshold eliminates jitter when stationary

09Metadata-stamped memories

Trek Photo Camera

Capture trek photos automatically stamped with real-time altitude, GPS coordinates, date, time, and location name — creating a visual altitude diary of your journey.

Use case: Photograph Everest from Kala Patthar with '5,545m • 27.9881°N, 86.8295°E • Kala Patthar' stamped on the image — proof of your summit.

Altitude and GPS coordinate overlay burned into the photo

Place name from reverse geocoding when online; coordinates and altitude stamp offline

Save directly to your device gallery with EXIF metadata intact

Altitude and GPS overlay work offline; place labels need a recent geocode

10Stay hydrated at altitude

Hydration Tracker

Track daily water intake with altitude-aware goals. Above ~3,000m dehydration sneaks up faster — this is a reminder, not individualized medical advice.

Use case: Trekking from Machhermo to Gokyo Ri at 5,360m — reminder to drink at every 300m elevation gain keeps dehydration-induced AMS at bay.

Daily water goal tracking with visual progress indicator

Altitude-aware reminders — more frequent above 3,000m

Hydration percentage displayed on home screen stats bar

Badge unlocked when you consistently hit your daily goal

11Pack smarter

Gear Checklist

Interactive packing checklist covering clothing, gear, electronics, documents, first aid, water treatment, and extras — with season and altitude filters plus pack-weight totals to match your trek. Progress saves locally.

Use case: Night before leaving for Manaslu Circuit — tick off down jacket, rain shell, water purification tablets, TIMS card, and emergency medicine.

Categories: clothing, footwear, camping, electronics, safety, hydration & food, navigation, personal

Check items off and progress saves automatically on your device

Filter by season and altitude band to match your trek's conditions

Per-item and total pack weight in your units (g/kg or oz/lb) to balance load against safety gear

'Prepared' badge unlocks when you complete your checklist

12Offline emergency reference

First Aid Guide

Comprehensive first aid guide covering common trekking emergencies — available offline when you need it most.

Use case: A fellow trekker shows signs of severe hypothermia at Thorong Phedi — the guide walks you through re-warming protocol while waiting for rescue.

Covers AMS treatment, frostbite, hypothermia, heat exhaustion, snake bites

Step-by-step instructions for fractures, sprains, wounds, and burns

Works fully offline once the reference content is installed

Clear when-to-evacuate indicators for critical conditions

13Mark what matters on the trail

Waypoints System

Drop waypoints for camps, water sources, trail junctions, danger zones, and points of interest. Navigate to any saved waypoint with compass bearing.

Use case: Mark a clean water source 200m off the Langtang trail — future trekkers (or your return trip) can navigate directly to it.

Save waypoints with custom name, type, and GPS coordinates

Navigate to any waypoint with compass bearing and distance

Waypoints visible on the interactive map overlay

Categories: camp, water, summit, junction, teahouse, viewpoint, danger, other

14Plan multi-day adventures

Trek Planner & Itinerary Builder

Build detailed day-by-day itineraries with departure dates, daily stages, altitude profiles, and countdown timers on your home screen.

Use case: Building a 14-day Everest Base Camp itinerary with rest days at Namche and Dingboche — the home screen shows '3 days to go' before departure.

Multi-day itinerary builder with stage names and altitude targets

Pre-built Nepal trek templates; build custom multi-day plans for any region worldwide

Departure countdown prominently displayed on home screen

Browse and select from the trek route library

15Your numbers, your way

Metric & Imperial Units

Switch the whole app between metric and imperial in Settings — altitude, distance, speed, and pack weight all follow your choice. Emergency SMS coordinates and exported GPX always stay metric so rescuers and other apps read them correctly.

Use case: A US trekking team sets imperial — the whole app reads in feet and miles, while the GPX they export and any SOS text still send metric coordinates.

One Settings toggle flips altitude, distance, speed, and pack weight to feet/miles/lb or metres/km/kg

Emergency SMS coordinates always stay metric for rescuers, whatever your display units

Exported GPX files stay metric for AllTrails, Komoot, and other tools

Preference saved on device and applied app-wide instantly

16Gamified trekking milestones

Achievement & Badge System

Earn badges for trekking milestones — first trek, altitude records, hydration streaks, gear preparation, and more. Share achievements with friends.

Use case: After completing your 10th trek, a celebration modal unlocks the Trail Blazer badge — share the card with your usual share sheet.

Badges for trek count milestones: 1, 5, 10, 15, 30 treks completed

Altitude achievement badges for reaching new elevation records

Hydration Hero badge after hitting your daily water goal 3 days

Preparation badges for completing gear checklists before treks

17Move treks to a new phone

Trek History Backup

Export completed trek history as a private backup file — routes, stats, altitude profiles, and names included. Import on a new device with merge or replace. No cloud account required.

Use case: Before upgrading your Android phone in Kathmandu — export trek history on Wi‑Fi, save to Google Drive, then import on the new device so your EBC and Annapurna logs carry over.

Settings → Export Trek History saves a .trekguard.json file to Drive, email, or any file app

Import on a new phone — merge adds new treks and skips duplicates, or replace swaps the full history set

Backup includes GPS routes and altitude profiles, not just summary stats

Files stay under your control — store them somewhere private; they can include GPS tracks

Under the hood

Engineering for extreme conditions

TrekGuard is built for cold phones, weak signal, and long days outside — not for demo-day Wi-Fi.

Altitude blending

GPS + barometer + cached ground elevation (not a pulse oximeter or medical device). Field accuracy depends on satellite fix, hardware, and calibration.

Offline Architecture

500-entry terrain elevation cache (7-day fresh TTL, up to 90 days when offline), plus downloadable MapLibre offline map packs — curated trek regions or any custom area you choose.

Privacy-first

No cloud account required. Route and trek data stay on-device until you export a backup file yourself. Analytics only when a release enables it — no ad monetization SDK in the default story.

Battery aware

Deferred writes, batched GPS points, and lighter animations so long days drain less battery — still depends on brightness, cold, and OS policies.

Important limitation

TrekGuard supports decisions. It does not replace local judgment.

GPX tracks, app notes, checklists, and route pages are planning aids. Weather, landslides, snow, trail changes, illness, lodge updates, official permit rules, guide advice, and local authorities should always override static app information.

Offline maps, GPS altimeter, weather, GPX, AMS checker, hike tracker

Compare TrekGuard to generic hiking apps: offline-first map regions, GPX import with route drift alerts, barometer-backed altitude, trek recording with elevation profiles, trek history export/import for new phones, Lake Louise AMS logging (educational only), Morse SOS flashlight, and contacts you configure — not a pre-loaded rescue directory.

Fresh mountain weather and map downloads need connectivity once. Core navigation and safety tools work after setup when mobile data drops on Himalayan, Alpine, Andean, or any high backcountry trail.

Get it on Google Play

Ready for your next Nepal & mountain adventure?

Download map packs on Wi‑Fi, pull weather while online, then use GPS altitude, planner & safety tools on trail — free on Google Play. Not a guide or rescue service.

Download TrekGuard Explore all features

Free on PlayNo ad SDK in Play buildPrivacy-firstOffline packs after download