Dear client.
I have gone through your brief and I can see that you want to modify your app ui and add a few features newly for React Native.
I am a senior React/React Native developer with great experience in Redux Saga | Thunk, Angular, Typescript, Vue, HTML, Database, React Hooks, Styled component, and React Material UI.
Front-End development using a special framework needs all its concepts, so I know almost all modern concepts and hooks in React.js from the experience of many years.
In my opinion, I think we must use the MERN to build this app, because it supports both android and iOS at the same time, so that can save your money and time.
I am ready to start right now.
Please feel free to contact me.
Thanks, Dzmitry.