Search & Rescue
Tianyi Chen Navigation iPhoneiPadiPod touch
Search & Rescue is a free Navigation app for iPhone and iPad by Tianyi Chen. Requires iOS 15.1. Updated October 26, 2026.
- Price
- Free
- on the App Store
- Size
- 36 MB
- Age 12+
- Updated
- Oct 26
- 2026 · v1.0.7
Screenshots
About Search & Rescue
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 SOS (hold 1.5s — no accidental alerts) · Red SOS button in the bottom tab bar — reachable from any screen · Hold 1.5s: instantly notifies all your family guardians + opens the emergency call list (119 / 112 / country-specific) · 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: [email protected] 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.
What’s new
Version 1.0.7 · Updated October 26, 2026
• Add protectors by QR code: scan each other once and you can both see where the other is, no need to ask for phone numbers • You now get a notification when someone adds you as a mutual protector • New "recently added" list, so you can add the same hiking friends back with one tap • Fixed text sometimes losing its last character on tablets • Fixed sign out not responding when there is no signal
App privacy
The developer, Tianyi Chen, reported these privacy practices to Apple.
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Location: Precise Location
- Contact Info: Email Address, Name, Phone Number
- User Content: Photos or Videos, Customer Support, Other User Content
- Identifiers: User ID, Device ID
- Other Data: Other Data Types
Used for: App Functionality
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3.7
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Search & Rescue | – | Free | October 26, 2026 | |
| Compass X: GPS Map,Tracker | – | Free | Apr 6, 2026 | Compare |
| Footprint - Auto GPS Tracker | – | Free | Oct 21, 2026 | Compare |
| Miofive オービス警報 | – | Free | May 6, 2026 | Compare |
| FX Smart | – | Free | Sep 22, 2026 | Compare |
| Outdooractive MyBusiness | – | Free | Oct 26, 2026 | Compare |
| Hikely - Hike, Bike, Run | 3.7 / 5 (3) | Free | Oct 23, 2026 | Compare |
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