Cross-Platform Mobile App Build

I need you to take my concept and turn it into a fully functioning mobile application that runs smoothly on both iOS and Android. The broad idea and core feature list are ready; what I’m missing is an experienced developer who can translate them into clean code, intuitive screens, and a seamless user experience.

Scope of work
• End-to-end development: architecture, UI implementation, backend hooks (if necessary), and thorough testing on both platforms.
• Store readiness: help me get the app through TestFlight, Google Play internal testing, and final submission.
• Communication: clear progress updates at agreed checkpoints so we stay on track for a 6-week delivery window.

Deliverables
1. Two release-ready builds (iOS & Android)
2. Complete, well-commented source code
3. Brief setup/run documentation

If you favour Flutter, React Native, or another modern cross-platform framework, let me know why it fits. Whichever stack you choose, performance and maintainability are top priorities.