TestFlight

You will automatically receive an invitation email to join your group of beta testers and will be prompted to install the free TestFlight app from the App Store. The TestFlight app makes installing beta apps simple, with no need to keep track of UDIDs or provisioning profiles.
For more information, read the 试飞常见问题解答 or view the 应用商店上的 TestFlight 应用程序.