Search & Rescue
Mountain safety guardian
Free
You can now add protectors by QR code. Scan each other once, and you can both see where the other is on the mountain.
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: 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.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
• 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
The developer, Tianyi Chen, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Location
- Contact Info
- User Content
- Identifiers
- Other Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Tianyi Chen
- Size
- 37.8 MB
- Category
- Navigation
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPad
Requires iPadOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later.
- iPhone
- Location
- This app may use your location even when it isn’t open, which can decrease device battery life.
- Languages
- English
- Age Rating
13+
- 13+
- Infrequent
Medical Treatment information
Contains
User-Generated Content
Health or Wellness Topics
- Copyright
- © 2026 Mars Chen
