From what I can tell, didSet seems to be working now. Swift 5, iOS 18.2

Although, I'm not sure why it seems to be called twice. That is weird to me.

Based on this post, you need to add it to your app description: You need to add this at the bottom of your app description on your store page: "Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/" https://www.reddit.com/r/iOSProgramming/comments/1fcr4ih/need_help_with_apple_store_rejection_subscription/ I just had the same rejection, so I added that in my app description and re-submitted. I'll let you know if that's not what I need to do. If so, that's crazy to me. Nowhere in the docs anywhere does it say to do that.