How to redeem a code in Apple Testflight app?

hey there so how to redeem a code in uh Apple iOS test flight app so here's the app and basically sometimes uh you might see that people release some better versions of the app and they just want people to be able to test these apps and yep so usually you need some kind of redeem code and you can just enter that so just tap open uh uh you will see here if you're already in some tests mode you will see apps here or you can just tap redeem and just enter your test flight invitation code to redeem the code and you'll be able to test that specific app so that's that that's how you redeem a code in the test flight app