Avertir - Safety Guardian

Avertir is a personal safety app that automatically detects falls, violent impacts, and vehicle crashes using your phone's sensors. When an incident is detected and you don't respond, Avertir sends SMS alerts with your GPS location to your pre-defined emergency contacts.

KEY FEATURES

▸ Crash & Fall Detection
4 detection modes powered by accelerometer analysis:
• Regular Fall — trips, slips, and falls
• Violent Fall — hard impacts and assaults
• Vehicle Crash — car and bike accidents
• Elderly Fall — optimized for seniors with lower thresholds

▸ Network Loss Alerts
Predicts cellular signal loss before it happens using linear regression analysis. Automatically sends your last known location to contacts before you lose connectivity — ideal for travel, hiking, and remote areas.

▸ Smart Emergency Pipeline
• Automated SMS with precise GPS coordinates
• Multi-contact alert system with priority levels
• Countdown timer with cancel option to prevent false alerts
• Optional auto-call to your designated emergency contact

▸ Hyper-Accurate Location
Multi-constellation GNSS support (GPS, GLONASS, Galileo, BeiDou) with Kalman filtering for the most accurate emergency location possible.

▸ Privacy First
• All personal data stored locally on your device
• No accounts required
• No ads, no tracking
• Emergency contacts never leave your phone
• Encrypted data transmission

HOW IT WORKS
1. Set up your emergency contacts
2. Enable crash detection and/or network loss alerts
3. Keep the app running in the background
4. If an incident is detected, a countdown starts
5. If you don't cancel, SMS alerts with your location are sent automatically

PREMIUM FEATURES
Free tier includes basic fall detection with 1 contact and 5 alerts/month. Premium unlocks unlimited contacts, all 4 detection modes, multi-constellation GPS, medical info cards, and more.

IMPORTANT DISCLAIMER
Avertir is a personal safety tool and is not a replacement for official emergency services. The app sends alerts to your personal emergency contacts only. It does not contact emergency services. Always contact emergency services directly in life-threatening situations.

Made with care by Zenith Intelligence Technologies.