The App Store is Apple's official digital marketplace that lets users discover, download, purchase, and update apps for iOS, iPadOS, macOS, watchOS, and tvOS. It combines editorial curation (Today, Games, Apps tabs), search and personalized recommendations to surface apps, in-app events, and editorial stories. For developers it provides a distribution channel, billing and subscription management, analytics, TestFlight beta distribution, and access to Apple developer services. The platform enforces App Review guidelines, privacy labels, sandboxing and other security standards to protect users while enabling global localized storefronts and monetization through in-app purchases and subscriptions.