Report IOS App does not display content in iOS Posted August 30, 2017 Thanks for adding me to the beta program! Opening the TestFlight app I can't see anything to test? There is a Redeem button in the top left. Quote Welcome to TestFlight Before you can start testing, a developer has to invite you to test on of their TestFlight apps. To accept and invite, tap on the link in the email or enter the invitation redeem code. I don't have a code to redeem and the email I did get doesn't any any TestFlight info?