You might not be familiar with the App Store restriction on in-app links/buttons to external payment methods. An app on the App Store must only provide subscrip

You might not be familiar with the App Store restriction on in-app links/buttons to external payment methods. An app on the App Store must only provide subscriptions through Apple's own means which gives them a 30% cut of every subscription payment. It took a long legal battle to allow Netflix to show a button to their own external subscription website: https://www.reuters.com/technology/apple-says-japan-fair-trade-commission-closes-app-store-investigation-2021-09-02/ https://www.reuters.com/technology/apple-says-japan-fair-tra... But even so, there are a lot of other big sellers which haven't yet got their external button approved.