I need a complete food and grocery delivery solution that runs smoothly on both iOS and Android. The build should cover three distinct roles—customers, delivery drivers, and an admin team—each with its own tailored interface but sharing one robust backend. Core workflow Users sign up or sign in, browse nearby stores, place an order, pay inside the app, and watch their driver approach in real time on a map. Drivers receive new-order alerts, accept or decline, navigate to the pickup point, and mark each step complete so that customers and admins see live updates. From the web dashboard I should be able to manage users, menus, pricing, promos, payouts, and issue refunds when needed. Tech notes I’m open to native (Swift + Kotlin) or a high-quality cross-platform stack such as Flutter or React Native, as long as both stores get a polished, performant release. Standard payment options like Stripe, Apple Pay, and Google Pay must be integrated with PCI-compliant handling. Real-time order tracking can rely on Firebase, Socket.io, or a similar push/streaming service; accuracy and low latency matter more than the brand name. Deliverables • Customer app (iOS + Android) • Driver app (iOS + Android) • Web-based admin portal • Secure user registration & login with social options • In-app payment gateway fully tested in sandbox and live modes • Real-time order status and map tracking • Source code, build instructions, and deployment support up to App Store & Play Store approval If you’ve shipped location-based or on-demand delivery apps before, I’d like to see live links or short videos. Let me know your chosen tech stack, estimated timeline, and any questions you need clarified before we lock milestones.