After you are done with the customisation and testing, Then you are ready to publish to Appstore or Google playstore. Follow the link below to the official deployment documentation from the Flutter team.
Deploying to AppStore: https://flutter.dev/docs/deployment/iosarrow-up-right
Deploying to Google playstore: https://flutter.dev/docs/deployment/androidarrow-up-right
Last updated 5 years ago