TestFlight is a great way for lots of people to test your app when you only have their email.
Note: If you only have a few testers, and their device UDIDs are already on your profile, it might be easier to test with debug builds.
If you'd like to use TestFlight, here are the steps.
- Complete all steps for iOS app store submission, including generating certificates and creating your app store listing.
- Add app testers in App Store Connect by visiting your app, click TestFlight, then Internal Groups => Testers.
- Run a "Submit to iOS app store" build on the Build tab of the app customizer.
- When your build is done processing, it should be available to test. You can check the status in App Store Connect under your app => TestFlight => Builds. You may be required to submit the Testflight app for review before you can test.
All testers will need to download the TestFlight app and enter their login. More information: https://testflight.apple.com/