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📅 Calendar for iOS, iPadOS and macOS in Swift
.package(url: "https://github.com/richardtop/CalendarKit.git", from: "1.0.6")

CalendarKit License SwiftPM compatible Swift Compatibility Platform Compatibility Tag Version


CalendarKit is a Swift calendar UI library for iOS, iPadOS and Mac Catalyst. It looks similar to the Apple Calendar app out-of-the-box, while allowing customization when needed. CalendarKit is composed of multiple modules which can be used together or independently.

Need Help?

If you have a programming question about how to use CalendarKit in your application, ask it on StackOverflow with the CalendarKit tag. Check out the Sample App for reference.

Please, use GitHub Issues only for reporting a bug or requesting a new feature.



Sample App

Try live in a browser

To try CalendarKit with CocoaPods issue the following command in the Terminal:

pod try CalendarKit


CalendarKit can be installed with Swift Package Manager or with CocoaPods.

Swift Package Manager (Xcode 12 or higher)

The preferred way of installing CalendarKit is via the Swift Package Manager.

  1. In Xcode, open your project and navigate to FileSwift PackagesAdd Package Dependency...
  2. Paste the repository URL (https://github.com/richardtop/CalendarKit.git) and click Next.
  3. For Rules, select Version (Up to Next Major) and click Next.
  4. Click Finish.

Adding Package Dependencies to Your App


To install it, add the following line to your Podfile:

pod 'CalendarKit'

Adding Pods to an Xcode project


  1. Subclass DayViewController
  2. Implement EventDataSource protocol to show events.

CalendarKit requires EventDataSource to return an array of objects conforming to EventDescriptor protocol, specifying all the information needed to display a particular event. You're free to use a default Event class as a model or create your own class conforming to the EventDescriptor protocol.

// Return an array of EventDescriptors for particular date
override func eventsForDate(_ date: Date) -> [EventDescriptor] {
  var models = myAppEventStore.getEventsForDate(date) // Get events (models) from the storage / API

  var events = [Event](https://raw.github.com/richardtop/CalendarKit/master/)

  for model in models {
      // Create new EventView
      let event = Event()
      // Specify StartDate and EndDate
      event.startDate = model.startDate
      event.endDate = model.endDate
      // Add info: event title, subtitle, location to the array of Strings
      var info = [model.title, model.location]
      info.append("\(datePeriod.beginning!.format(with: "HH:mm")) - \(datePeriod.end!.format(with: "HH:mm"))")
      // Set "text" value of event by formatting all the information needed for display
      event.text = info.reduce("", {$0 + $1 + "\n"})
  return events

After receiving an array of events for a particular day, CalendarKit will handle view layout and display.


To respond to the user input, override mehtods of DayViewDelegate, for example:

override func dayViewDidSelectEventView(_ eventView: EventView) {
  print("Event has been selected: \(eventview.data)")

override func dayViewDidLongPressEventView(_ eventView: EventView) {
  print("Event has been longPressed: \(eventView.data)")


CalendarKit supports localization and uses iOS default locale to display month and day names. First day of the week is also selected according to the iOS locale.



By default, CalendarKit looks similar to the Apple Calendar app and fully supports Dark Mode. If needed, CalendarKit's look can be easily customized. Steps to apply a custom style are as follows:

  1. Create a new CalendarStyle object (or copy existing one)
  2. Change style by updating the properties.
  3. Invoke updateStyle method with the new CalendarStyle.
let style = CalendarStyle()
style.backgroundColor = UIColor.black

Light theme Dark theme


  • iOS 9.0+, iPadOS 13.0+, macOS 10.15+
  • Swift 4+ (Library is written in Swift 5.3)


The list of features currently in development can be viewed on the issues page.

Before contributing, please review guidelines and code style.


Richard Topchii


CalendarKit is available under the MIT license. See the LICENSE file for more info.


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iOS Software Engineer @ Perry Street Software
Perry Street Software is Jack’d and SCRUFF. We are two of the world’s largest gay, bi, trans and queer social dating apps on iOS and Android. Our brands reach more than 20 million members worldwide so members can connect, meet and express themselves on a platform that prioritizes privacy and security. We invest heavily into SwiftUI and using Swift Packages to modularize the codebase.

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Release Notes

CalendarKit 1.0
3 weeks ago

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