In a move that mirrors Apple's introduction of SwiftUI, Google introduced Jetpack Compose as a new and quite different approach to building user interfaces for modern Android applications. Compose brings more powerful tools and an intuitive Kotlin API. In most cases less code is needed, and it has become easier to create user interfaces at runtime rather than defining a static UI that can be filled with data. With Compose Multiplatform and Kotlin Multiplatform developers now have a unified toolkit to build desktop, web and native Android apps. Wear OS 3.0+ is included, too, and with support for iOS already present in Kotlin Multiplatform Mobile, it's likely that iOS will be supported by Compose in the future.