CabMe iOS App Publishing

I’ve purchased the CabMe Flutter Complete Taxi Booking Solution (see link above) and now need the iOS build prepared, customised, and successfully published under my own Apple Developer account. I’ll handle the enrolment of that account myself; you take it from there... (Budget: ₹600 - ₹1500 INR, Jobs: Dart, Flutter, iOS Development, iPhone, Mobile App Development, Objective C, Swift, Xcode)