TODO

[hyochan]

Common

• Evaluate support for alternative billing (Google UCB vs Apple App Store)

  Google allows alternative billing through the User Choice Billing program with reduced fees, while Apple generally prohibits it except for limited cases (e.g., dating apps in the Netherlands, reader apps with external links).

IOS

• quantityIOS should be deprecated.

  On Android (Google Play Billing), purchases do not support a quantity parameter. Each billing flow request processes only one unit of a product, and if a user wants multiple, the app must trigger multiple purchase calls. This differs from older iOS APIs that once allowed quantity, but in modern StoreKit 2 and Play Billing, all purchases are handled as single-item transactions.

Android