Hello, I am building an iMessage extension for my app and I am struggling to figure out how to test it. The extension allows users to send their friends an interactive widget and the recipient experience is very important to test.
I tried to do it in the simulators, but simulators do not support iMessage. I have got a second iPhone and created a sandbox account, but I cannot install TestFlight with the sandbox account, as this feature is not supported.
Reddit, Stackoverflow, ChatGPT and Apple Developer support also did not help. Can someone share their experience with testing recipient experience in the iMessage extension?