Search & Rescue

Built for hikers. One-tap SOS alerts your family and dials emergency. TWD97 rescue-standard coordinates, offline maps, 40-country emergency numbers. Free, no ads.

For mountaineers, safety is the only path home.

Search & Rescue is a mountain safety companion built for hikers, letting your family know you're safe on the trail, sending instant SOS alerts, with coordinates in the format rescue services use — one tap to copy and forward.

Core Features

One-Tap SOS · Big red button in bottom tab bar — accessible from any screen · Long-press 1.5s to dial emergency (119 / 112 / country-specific) directly · Instant push to all your family guardians · Message includes WGS84 · TWD97 · DMS coordinates + Google Maps link · 40 countries with local emergency numbers (auto-detected by location) · Auto-SOS: fall detection + 1-hour stillness prompt (I'm OK / Resting 8h / SOS)

Family Guardians · Invite family or friends as your guardians (up to 20) · They see your real-time location, trail track, battery level, and altitude · Automatic location sharing (smart background tracking, works even with screen off) · Works offline — queued and sent when signal returns

TWD97 Coordinates (Taiwan Rescue Standard Format) · The ONE coordinate format Taiwan fire/mountain rescue teams use · One-tap copy to text/email to rescuers · Also provides WGS84 (for Google Maps) and DMS (standard aviation format)

Offline Maps (No-signal wilderness ready) · Download OpenStreetMap / OpenTopoMap tiles before your trip · View maps + GPS position even with zero cellular signal · Free-form region selection (not limited to preset trails)

Hiking Trail Recording · Auto-tracks time, distance, elevation gain/loss, avg speed · Multi-day support (auto per-day breakdown) · Export GPX to Garmin / Strava · Nearby trails search + community shared details

Achievement Badges · 15+ badges (First Trip / 100km Cumulative / 1000m Elevation, etc.) · Custom monthly goals (distance / elevation / time) · Celebration animation on each hike + badge unlock

Live Heart Rate · Connects Garmin broadcast HR / Polar / Wahoo / Apple Watch · High HR warnings (auto max HR by age) · 5 heart rate zones displayed live

Environmental Monitoring · Live weather + 7-day forecast (Open-Meteo) · Barometer thunderstorm warning (3 hours ahead) · Altitude sickness warning (hydration + slower ascent reminders above 3000m) · Air quality + UV index · Sunrise/sunset + remaining daylight

Smart Companion (Human Touch) · New area: "New place — I'll walk with you" · Lunchtime: "It's noon, eat before you continue" · Dusk approaching: "You're a dusk hiker — mind the dark" · 8 contextual messages, learns from your patterns

Privacy First

· Location data auto-cleared after 90 days (GDPR + Taiwan Privacy Law compliant) · Sign-out immediately clears cloud location history (profile kept) · Only guardians YOU invite can see your position · Encrypted transport (Firebase HTTPS + Firestore rules) · Free, no ads, no trackers

11 Languages

Auto-follows system language, manual override available

Completely Free · No Ads

This app was built by a son for his father, and given as a gift to every hiking family. May everyone come home safe.

Feedback

Built-in feedback (Settings → Feedback), developer reads every message personally. Email: searchrescuetw@gmail.com

Medical Disclaimer

Search & Rescue is not a medical device. It is not intended to diagnose, treat, cure, or prevent any disease. Heart rate monitoring, altitude sickness alerts, and barometer warnings are for informational purposes only, not a substitute for professional medical judgment. Consult a physician for any health concerns.

Disclaimer

This app is a supplement, not a replacement for basic mountain preparation: · Tell family your itinerary before departure · Carry paper maps + compass · Bring adequate food + warm layers · In emergency, always call 119 / 112 first

Search & Rescue is an extra layer of protection, so your loved ones at home can worry a little less.