: YouTube likely uses "Internal Testing" for Google employees (up to 100 users) and "External Testing" for the broader public beta group Microsoft Learn App Review
: Because YouTube is a high-demand application, public TestFlight links are often "full." Users frequently have to wait for the development team to purge inactive testers to free up slots. 2. Tester Responsibilities and Feedback youtube beta testflight
Unlike many apps that have a simple "Stable" vs. "Beta" switch, YouTube operates on a tiered system that dictates who sees what. : YouTube likely uses "Internal Testing" for Google
Learn how TestFlight works and why developers use it to test iOS apps like YouTube: youtube beta testflight