Hailed Security App
The Problem
A security-focused startup needed a mobile app that could send instant emergency alerts to trusted contacts with real-time location data. The system had to be fast, reliable, and work under stress — when users are in danger, every second matters.
My Approach
I built the app with Flutter and Supabase for real-time data sync. The geolocation system uses continuous background tracking and one-tap SOS broadcasting. Supabase Realtime pushes location updates to trusted contacts instantly. The UI was designed for extreme simplicity under duress — large buttons, minimal steps, no friction.
Tech Stack
Key Features Built
- One-tap emergency alert broadcasting to trusted contacts
- Real-time GPS location sharing via Supabase Realtime
- Trusted contact management with permission system
- Background location tracking for continuous monitoring
- Instant push notification delivery to all trusted contacts
Outcome
Delivered on time with all core emergency features functional. Client was satisfied with the reliability and speed of the real-time location system.