Mobile App to Elevate Visibility

I am ready to commission a full-cycle mobile app that will noticeably expand my online presence. At this stage I have a clear objective—publish an intuitive, polished application in both the Apple App Store and Google Play—but I’m flexible on the technical stack and design direction... (Budget: $250 - $750 USD, Jobs: API Integration, Backend Development, Flutter, iPhone, Mobile App Development, React Native, User Interface / IA, Website Design)