Apple Unveils Unified Design Language and Built-In AI Tools for Developers at WWDC

Liquid Glass design, Apple Intelligence APIs, and visionOS 26 tools highlight Apple’s 2025 State of the Union for developers.

On June 9, Apple staged its Platforms State of the Union as part of its 2025 Worldwide Developers Conference. This serves as a secondary keynote presentation, intended for app developers, that delves into some of the announcements in greater depth.

SEE: Apple’s WWDC 2025 Keynote Roundup

Apply ‘Liquid Glass’ to app design

One of the biggest announcements was the unveiling of “Liquid Glass,” the new interface design to be used in the next operating system update. Developers can now adopt the glassy, shiny new look into their apps using SwiftUI, UIKit, or AppKit, such as in the app icon.

Billy Sorrentino, Apple’s senior director of human interface, said at WWDC that the new design aims to bring better hierarchy, harmony, and consistency to devices.

Key user interface (UI ...