Flutter Hinge Clone app

Hello we need a dating app build with flutter. A plug and play flutter script which you have experience with would be ideal. The app needs to be plug and play and you need to have experience and the codebase already for the app. We would like to add a questionnaire modification to the beginning of the app in order to qualify their match. Must have frontend and backend as well as chat feature and payment option. If using an existing script, you must be able to have the script running and show functionality.