Cross-Platform Ride Sharing App

I need a complete ride-sharing solution released as native-quality iOS and Android apps plus a responsive web portal. The system must cover secure user registration and login, real-time GPS ride tracking, and seamless in-app payment processing. Three distinct roles are required—Rider, Driver, and Admin—each with the right set of screens and permissions. For riders: request a trip, see nearby drivers, view ETA and fare, track the car live, and pay without leaving the app. For drivers: toggle availability, accept or decline requests, follow turn-by-turn navigation, and mark trips complete. For admins: monitor all live trips, manage users and payouts, issue refunds, and pull basic analytics from an online dashboard. You are free to choose the most suitable tech stack—React Native or Flutter for mobile, a Node.js, Django, or similar backend, Google Maps SDK/WebSockets for live location, and Stripe or PayPal for payments—as long as latency stays low and the codebase is maintainable. Deliverables • Production-ready iOS app, Android app, and responsive web app • Backend source with documented API endpoints and database schema • Web-based admin panel with role-based access control • Unit tests covering core flows and a concise README for local setup • Staging deployment on my server and store/publishing assistance Acceptance criteria • Users in all three roles can sign up, log in, and perform their core functions without errors • Rider and driver locations update in under two seconds end-to-end • Payments process successfully with receipts stored in the database and visible to admin • All traffic is served over TLS and sensitive data is hashed or tokenised Share a brief development roadmap and any questions you need clarified so we can get started.