App Store

Use Apple's public Lookup API to check whether a newer App Store version is available, compare it safely, and send users to the App Store from SwiftUI.

Use StoreKit's monthly billing plan for yearly subscriptions, show the commitment honestly, purchase the monthly plan, and track entitlement versus commitment progress.

Move large optional app and game content out of your bundle, deliver it when needed, and localize asset packs without making users download every language.