SOS emergency app
Hold the SOS button for 2 seconds to send your live GPS location via SMS to your emergency contacts — no internet required, no server, no account. Everything runs on your device.
🆘 MANUAL SOS
Hold 2 seconds → SMS with GPS coordinates + Google Maps link sent to all ICE contacts instantly.
🤖 AUTO SOS
Automatically fires an SOS if you stop moving (inactivity trigger), battery drops critically low, or both. Quiet hours pause triggers during sleep without disabling protection.
Works in background on Android 10, 11, 12, 13, and 14.
Built with a persistent foreground service, WakeAlarm fallback, and JobScheduler redundancy to survive Android Doze mode and OEM battery killers (OnePlus, Xiaomi, Samsung). Background location ("Allow all the time") is guided step-by-step inside the app.
📳 SHAKE TRIGGER
Shake your phone twice to fire SOS — even with the screen off. Sensitivity is adjustable.
📍 LIVE GPS SHARING
Share your live location via SMS at set intervals. Falls back to cell tower or WiFi when GPS satellite is unavailable.
🪪 ICE CARD
Store your name, blood group, allergies, medical notes, and up to 3 emergency contacts. A scannable QR code is generated automatically — first responders can scan it if you are unconscious. Save it as your lock screen wallpaper.
📵 WORKS OFFLINE — NO INTERNET NEEDED
Alerts are sent as standard SMS. No Wi-Fi, no mobile data, no cloud server required. If your phone has a signal, your SOS gets through.
🌐 14 LANGUAGES
English, Tamil, Hindi, Malayalam, Telugu, Kannada, French, Spanish, German, Arabic, Chinese, Japanese, Portuguese, Russian — translated on-device using ML Kit. No data leaves your phone.
🔒 MASTER PIN
Protect your settings with a PIN so nothing is accidentally changed.
🔦 EMERGENCY FLASH
Full-screen strobe to signal for help visually in low-light situations.
🩺 WELLNESS TIMERS
Guided breathing, meditation, eye care, and stretch break reminders for users spending long hours alone.
🎮 NOT ALONE
Feeling overwhelmed? Motivational quotes, calm background audio, a focus mini-game, and wellness resources — right inside the app.
📊 SECURITY EVENT LOG
Logs SIM changes, airplane mode, and power events automatically — tamper detection for duress situations.
🔔 TAMPER ALERTS
Get notified if someone changes your SIM or turns on airplane mode while the app is active.
📲 BLUETOOTH BUTTON
Pair a Bluetooth media button to trigger SOS hands-free — useful for drivers and cyclists.
🛡️ YOUR DATA STAYS ON YOUR DEVICE
No account. No server. No data sharing. Location is used only to build the SMS sent to your own contacts. No foreign data routing.
✅ PERMISSIONS EXPLAINED
Location (Always): background GPS for Auto SOS and Live GPS Share
SMS: send emergency alerts to your contacts
Notification: foreground service notification required by Android
Exact Alarm: precise inactivity and quiet-hours scheduling
Bluetooth: optional hands-free trigger
No camera, microphone, or contacts list access required.
🇮🇳 Made in India — Free, no ads, no subscriptions.
Built by an independent developer from Tamil Nadu, born from a personal 100-day hospital experience. RedShield SOS exists so everyone has a reliable safety net in their pocket.