Mobile app developer

I am looking for a mobile app developer to create a Health App for both iOS and Android platforms. I need a Full Stack React developer for continued updates to my mobile app. No product teams, need direct contact with developer.looking for React Developer, While I have a rough idea of the features and functionalities I want to include, I need assistance in defining and refining them. The ideal candidate should have experience with developing e-commerce, social networking, or utility/service mobile apps. Additionally, they should be proficient in both iOS and Android app development.