Swift

Native application programming languageOpen source· verified Sep 2026

A compiled language used for Apple-platform applications and other native software. Pair it with SwiftUI or UIKit for iOS interfaces and call platform SDKs directly.

Official site

Reach for it when

Native Apple-platform apps
Direct integration with Apple SDKs

Worth knowing

The language is Apache-2.0 licensed with a runtime library exception. Apple's SDKs, SwiftUI, Xcode, and distribution agreements have separate terms; Swift being portable does not make SwiftUI an Android UI toolkit.

In stack playbooks

Native iOS — Swift + SwiftUI

App logic and native SDK integration

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