tvOS

tvOS is Apple's operating system for the Apple TV digital media player. Built on a foundation of iOS, it provides the user interface, app execution environment, and system services that run on the set-top box. The platform was introduced in 2015 as Apple TV OS and was renamed tvOS in 2016 with the fourth-generation Apple TV. It is designed to run apps and games accessed through the tvOS App Store and controlled with the Siri Remote.

tvOS features include a home screen optimized for television, voice search via Siri, and a software development kit that allows developers to create apps for television. The platform supports streaming apps, games, and channels, and integrates with AirPlay, HomeKit, and Apple Arcade on compatible devices.

Developers build tvOS apps with the tvOS SDK in Xcode, using languages such as Swift or Objective-C. Apps must be adapted from iOS to fit the larger screen and use tvOS-specific UI patterns. Distribution is through the tvOS App Store, with guidelines for privacy, performance, and content.

tvOS runs on Apple TV devices, including Apple TV HD and Apple TV 4K. The Apple TV 4K supports 4K HDR, including Dolby Vision and Dolby Atmos audio, while Apple TV HD outputs 1080p video. The devices also support Game Center, Metal graphics, and various media frameworks (AVKit, Core Video, Core Animation).

tvOS can serve as a HomeKit hub for smart‑home accessories and supports AirPlay for streaming from other Apple devices. It also integrates with Apple's media ecosystem, including iTunes, Apple TV+, and Apple Arcade on compatible hardware.