I am building a full-featured taxi application that must run natively on both iOS and Android. The scope centres on three core capabilities: • GPS tracking – riders and drivers see one another in real time, with distance, ETA and routing handled through each platform’s native location services or Map SDKs. • Payment integration – secure, in-app card payments and digital wallets processed through a PCI-compliant gateway. • Ride history – a persistent log of every completed trip, fare, route and receipt, accessible to both rider and driver. Design, backend and deployment are all in play: intuitive UI/UX for passengers and drivers, a scalable API layer, and submission to the App Store and Google Play. Code needs to be clean, documented and ready for future feature expansion. Acceptance criteria 1. The app installs and runs without crashes on current iOS and Android versions. 2. Real-time location updates have a maximum 2-second latency under normal network conditions. 3. Payments pass test transactions and return confirmed receipts. 4. Ride records persist after app reinstall and match server logs exactly. Source code, build instructions and basic test reports should be handed over on completion.