For more details, see Distribute an app using TestFlight.

Release your app to the App Store

When you’re ready to release your app to the world,
follow these steps to submit your app for review and
release to the App Store:

Select Pricing and Availability from the sidebar of your app’s
application details page on
App Store Connect and complete the
required information.

Select the status from the sidebar. If this is the first
release of this app, its status is
1.0 Prepare for Submission. Complete all required fields.

Click Submit for Review.

Apple notifies you when their app review process is complete.
Your app is released according to the instructions you
specified in the Version Release section.

For more details, see
Distribute an app through the App Store.

Troubleshooting