The EventKit framework provides access to calendar and reminders data so you and your users can create, retrieve, and edit calendar items in your app.
You can use EventKit to set up alarms and create recurring events. And if a change to the Calendar database occurs from outside your app, EventKit detects the change and sends a notification, allowing you to stay up to date.
Before using the EventKit, make sure it's enabled inside the plugin settings. See the screenshot below:
EventKit.framework will be added as the required framework.