I have a full set of REST APIs ready and now need the mobile client that brings them to life on both iOS and Android. Your task is strictly frontend: build the screens, hook every call to the existing endpoints, and return clean, tested code that compiles side-by-side for the two stores. The general flow is already mapped out—wireframes, user journeys, and response models are available as soon as we start. I’m flexible about the stack as long as it truly is one codebase (Flutter, React Native, or a comparable cross-platform solution) and the final UI feels native on each platform. If you prefer to target Swift UI and Kotlin separately, make a strong case and we can discuss it. Key points I will look for • Pixel-accurate implementation of the provided designs (I can supply Figma files or you can help refine them). • Smooth API binding for list views, detail pages, and simple CRUD forms, complete with loading, empty, and error states. • Local state management, pagination where applicable, and graceful offline handling. • Build, signing, and store-ready delivery for TestFlight and internal Android testing. Acceptance criteria 1. Source code pushed to my private Git repo with clear commit history. 2. Successful end-to-end test run using the staging API base URL I’ll provide. 3. Two release builds (.ipa and .aab) that install and log in without errors. 4. Short hand-off document explaining environment variables, build commands, and any third-party libraries used. If this aligns with your expertise and you can hit the ground running, let’s talk schedules and milestones right away.