Native Cross-Platform App Rebuild

I need my existing Glide app rebuilt as a fully native, cross‑platform mobile app. Requirements: Build in React Native or Flutter (developer can choose) Must run smoothly on iOS and Android Must be... (Budget: $250 - $750 AUD, Jobs: Agile Development, Android, App Store Optimization, Flutter, HTML5, iOS, iOS Development, iPhone, Mobile App Development, React Native)