I’m taking a new ride-sharing concept from idea to launch and need a partner who can own the entire lifecycle—design, build, test, and publish—using a single Flutter codebase for both iOS and Android. The experience must feel sleek and modern: crisp typography, fluid animations, and an intuitive flow from booking to payment. Core functionality includes real-time GPS tracking of drivers and riders, in-app payments, and a user rating / review loop that encourages good behaviour on both sides. Behind the scenes, matching and proximity logic will pair riders with the closest available drivers while constantly updating ETAs. Security is non-negotiable. Two-factor authentication will protect every account and all client–server communication must be wrapped in end-to-end encryption. If you have proven techniques for extending this with an emergency button or similar safety layer, let’s discuss. I expect: • Interactive design prototypes and final UI assets • Production-ready Flutter code, fully unit- and integration-tested • Scalable backend (Firebase or your recommended stack) with documented APIs • TestFlight / Play Console builds, plus live store submissions • A short hand-off guide so my team can maintain the product after launch You’ll have plenty of room for technical decisions—state-management, mapping SDKs, payment gateways—as long as the final deliverable is stable, fast, and passes review in both app stores. If you thrive on end-to-end mobile projects and can prove past success shipping location-based apps, I’d love to talk timelines and milestones soon.