# Deprecated articles and symbols ## Topics ### Articles [Creating complications for your watchOS app](/documentation/ClockKit/creating-complications-for-your-watchos-app) Set up and implement complications for your watchOS app. [Declaring complications for your app](/documentation/ClockKit/declaring-complications-for-your-app) Define the complications that your app supports. [Creating a timeline entry](/documentation/ClockKit/creating-a-timeline-entry) Package your app-specific data into a template and create a timeline entry for that template. [Loading future timeline events](/documentation/ClockKit/loading-future-timeline-events) Preserve battery life and improve performance on the watch by providing a timeline with expected data and updates. [Keeping your complications up to date](/documentation/ClockKit/keeping-your-complications-up-to-date) Replace or extend the data in your complication’s timeline. [Building complications with SwiftUI](/documentation/ClockKit/building-complications-with-swiftui) Design the appearance of a graphic complication using SwiftUI. [Displaying progress views and gauges](/documentation/ClockKit/displaying-progress-views-and-gauges) Add rich visual data to your SwiftUI complications with progress views and gauges. [Adding text to a complication](/documentation/ClockKit/adding-text-to-a-complication) Use text in SwiftUI complications. ### Other Symbols [`class CLKComplicationServer`](/documentation/ClockKit/CLKComplicationServer) An object that manages the active complications for an app. [`class CLKComplication`](/documentation/ClockKit/CLKComplication) Metadata about a custom complication. [`class CLKComplicationTimelineEntry`](/documentation/ClockKit/CLKComplicationTimelineEntry) A container for the complication template object to display and the time to display it. ### Sample Code [Providing Multiple Complications](/documentation/ClockKit/providing-multiple-complications) Present multiple complications for a single complication family using descriptors. [Creating and updating a complication’s timeline](/documentation/ClockKit/creating-and-updating-a-complication-s-timeline) Create complications that batch-load a timeline of future entries and run periodic background sessions to update the timeline. ### Templates [SwiftUI templates](/documentation/ClockKit/swiftui-templates) Design complication templates using SwiftUI views. [`enum ComplicationRenderingMode`](/documentation/ClockKit/ComplicationRenderingMode) The complication’s appearance, as specified by the watch face. [Data providers](/documentation/ClockKit/data-providers) Feed data to a complication template. [Circular small](/documentation/ClockKit/circular-small) Display small, circular content in the corners of the Color watch face. [Extra large](/documentation/ClockKit/extra-large) Display content on the X-Large watch face. [Modular small](/documentation/ClockKit/modular-small) Display content in the smaller spaces of the Modular watch face. [Modular large](/documentation/ClockKit/modular-large) Display multiple rows of content in the large, central complication on the Modular watch face. [Utilitarian](/documentation/ClockKit/utilitarian) Use the utilitarian templates to display content on a variety of watch faces, including the Utility, Chronograph, Simple, and character watch faces. [Graphic](/documentation/ClockKit/graphic) Display visually rich content on watch faces. [`class CLKComplicationTemplate`](/documentation/ClockKit/CLKComplicationTemplate) An abstract class that defines the base behavior for all templates. [`enum CLKComplicationFamily`](/documentation/ClockKit/CLKComplicationFamily) Constants indicating the template groups. --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)