IIRC, Apple disallows instructing users how to purchase said things elsewhere. It's a very weird position to be in as a user. For instance, I can't buy any ebo

IIRC, Apple disallows instructing users how to purchase said things elsewhere. It's a very weird position to be in as a user. For instance, I can't buy any ebooks on my iPhone's Kindle or Google Play Books apps. Edit: "There's no flat IAP requirement" - https://developer.apple.com/app-store/review/guidelines/ https://developer.apple.com/app-store/review/guidelines/ > 3.1.1 - If you want to unlock features or functionality within your app, (by way of example: subscriptions, in-game currencies, game levels, access to premium content, or unlocking a full version), you must use in-app purchase > [..] > 3.1.1(a) - Link to Other Purchase Methods: Developers may apply for entitlements to provide a link in their app to a website the developer owns or maintains responsibility for in order to purchase digital content or services So it looks like you can apply to host a link, though Apple isn't clear on when they'll grant it: https://developer.apple.com/support/storekit-external-entitlement-us/ https://developer.apple.com/support/storekit-external-entitl... EU devs can seemingly just use them, though: https://developer.apple.com/support/apps-using-alternative-payment-providers-in-the-eu/ https://developer.apple.com/support/apps-using-alternative-p...