The full name of Apple's TF signature, TestFlight signature, is quickly available for internal testing service!!

To put it simply, TestFlight can pre-release applications that have not yet been put on the App Store. Developers can use testflight to publish and install applications, and use TF signatures to test whether the applications have bugs.
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Tags/keywords: TestFlight distribution, Apple tf signature, TestFlight internal testing, high-end tf signature, Apple shelves
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