Flutter IoT App Store Deployment

I have already written the Flutter code that talks to my ESP-32-based control board; what I now need is a seasoned publisher who can take my existing project, polish the final build, and release it to both the Apple App Store and Google Play... (Budget: $30 - $250 USD, Jobs: Android, Android App Development, App Store Optimization, Flutter, iOS Development, iPhone, Mobile App Development, Objective C)