Cross-Platform Silent SMS Tracker

PLEASE READ FIRST and UNDERSTAND

I need a reliable, discreet silent-SMS tracking solution that works seamlessly on both Android and iOS. My main goals are SOS tracking for loved ones, fast recovery of lost or stolen handsets, and an unobtrusive way to watch over driving patterns without drawing attention to the device owner.

Core capabilities must include:
• Real-time location fixes delivered in seconds
• Configurable geofencing with instant enter/exit alerts
• A secure movement-history log I can query at any time

The ideal build silently triggers location updates via SMS, aggregates them on a lightweight cloud back end, then pushes data to a clean web or mobile dashboard. Whether you choose Kotlin, Swift, React Native, Flutter, Node.js, Firebase, Twilio or another SMS gateway, I only care that the end result is accurate, battery-efficient, and tamper-resistant.

Please outline:
– Your approach to achieving Silent SMS location retrieval on both platforms
– Any limitations imposed by current OS policies and how you plan to mitigate them
– Estimated timeline for a working proof-of-concept followed by a polished release

Deliver a compiled APK/IPA (or TestFlight link), source code, and brief deployment notes so I can run the server side myself.