iOS & Android Utility App

I need a single code-base solution that ships to both the App Store and Google Play. The project is a utility-style application, not e-commerce or social media, so the focus is on streamlined functionality rather than heavy UI flourishes... (Budget: ₹600 - ₹1500 INR, Jobs: Android, Backend Development, Flutter, iOS Development, iPad, iPhone, Mobile App Development, Project Management, React Native)