Core Feature Set for Driver Apps
Route and delivery list (sorted by optimised sequence), navigation integration (Google Maps or MapmyIndia for Indian roads), proof of delivery (photo capture + digital signature + GPS stamp), delivery status updates (delivered, failed — with reason code), customer communication (call or WhatsApp from within app without exposing driver phone number), and vehicle check-in/check-out.
GPS Tracking Architecture
The app reports GPS location every 30 seconds while on duty. Use React Native’s Background Geolocation library for location updates when the app is in the background. Store locations in a time-series database (TimescaleDB) — you need to replay the complete route for dispute resolution. Show live driver locations on a web dashboard for dispatchers.
Optimising Battery Usage
GPS tracking drains battery. Use adaptive tracking — when the driver is stationary for more than 5 minutes, reduce location reporting to every 5 minutes. When the driver is moving, report every 30 seconds. When navigating on a known route, report position only when deviating significantly. This extends battery life by 40–60% compared to fixed-interval tracking.
Offline Delivery Logging
Delivery areas in India frequently have poor connectivity. The app must log deliveries offline — photo, signature, GPS coordinates, and timestamp stored locally — and sync when connectivity returns. Proof of delivery photos should upload in background after sync, not block the driver from proceeding to the next delivery.
Driver app success depends on offline reliability and battery efficiency. Apps that drain battery by noon or lose data in low-connectivity areas get uninstalled regardless of feature count.
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