I would like to have an app developed on react native or flutter for cross-platform support.

It is basically going to be a fantasy winning game.

Get through the app and let me know how can you help me.

Note: If you are not familiar with any of the cross-platform languages then consider not biding on this project.

UI and UX are also very important for this app, So let me know how could you gonna help me with the UI and UX.