It's ridiculously hard to adopt this model on iOS I started implementing it for my app, Codea (https://codea.io https://codea.io) because it was released in 20

It's ridiculously hard to adopt this model on iOS I started implementing it for my app, Codea (https://codea.io https://codea.io) because it was released in 2011 and I have been updating it ever since. So I'm still working pretty hard to support customers who purchased it for $8 over ten years ago! I got as far as enumerating features (classing them as "Free" and "Pro"), adding a system to the codebase to check if a feature has been permanently activated based on the most recent receipt. But then I went to implement NON-autorenewing subscriptions — i.e., subscriptions that don't renew automatically — and discovered that Apple doesn't even support StoreKit testing for this type of subscription. So it would be a nightmare to test with having to manually create a ton of non-reusable sandbox accounts for every scenario It's unsupported, under documented and just neglected. You have to work harder NOT to automatically take your customers' money after each renewal period! I'd still like to go this route, but it took weeks away from working on actual useful features. And since it's a hobby project it seemed sensible to shelve it for now Edit: the worst part is you have to litter your codebase with checks for features and whether they are active. Gracefully handle them not being active. If Apple let us simply sell version upgrades this would all go away