Complete Reminders Directly in iOS 18 Calendar

Apple's iOS 18 introduces full integration between the Calendar and Reminders apps, allowing users to view, manage, and complete scheduled tasks directly within the Calendar interface. This article explains how the new integration works, confirms that you can check off reminders without launching the Reminders app, and outlines the simple steps to manage your tasks inside Calendar.

How Calendar and Reminders Integration Works in iOS 18

Yes, you can mark tasks as completed directly inside the Calendar app in iOS 18 without ever switching to the Reminders app. Scheduled tasks now appear alongside standard calendar events across day, week, and month views.

When a reminder reaches its due date or time, it is displayed with an interactive circle next to the title. Tapping this circle immediately marks the task as completed. The status synchronizes in real time with the standalone Reminders app and across all your iCloud-connected Apple devices.

How to Check Off Tasks in the Calendar App

  1. Open the Calendar app on your iPhone running iOS 18.
  2. Navigate to the view of your choice (Day, Week, Month, or List view).
  3. Locate the reminder you want to complete, indicated by a circular checkbox icon next to its title.
  4. Tap the circular checkbox to mark the task as complete.

Once tapped, the circle fills in, and the item will be struck through or hidden based on your display preferences.

Creating and Editing Reminders Within Calendar

In addition to completing tasks, iOS 18 lets you create and edit reminders without leaving Calendar:

  • Creating Tasks: Tap the + (plus) icon in the top right corner of the Calendar app. At the top of the creation screen, switch between Event and Reminder. From here, you can set a title, date, time, priority, and assign it to a specific Reminders list.
  • Editing Tasks: Tap on any existing reminder in your calendar to open its details. You can change the due date, adjust notifications, or reschedule the item without opening the Reminders app.

Viewing Completed Tasks

If you want to view tasks you have already finished, you can toggle their visibility:

  1. Tap the Calendars button at the bottom center of the Calendar app.
  2. Scroll to the Reminders section.
  3. Toggle the option to show or hide completed reminders to keep your schedule organized.