Hello, Hope you are doing well!
Having 2+ years of immense expertise in flutter app development will definitely allow me to develop "iOS/Android app" .I have experience of firebase, sqflite database, push notification, google map, payment integration, REST api integration, third party integration etc in flutter. I also have experience of uploading of app on play store and app store.
In the past, I've created a variety of apps that received positive feedback from clients. As a result, I will complete all of your requirements with a successful outcome.