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Reminders

Reminders icon in macOS
Overview in the Reminders app in iOS 14
Developer(s)	Apple Inc.
Initial release	iOS: October 12, 2011; 13 years ago (2011-10-12) macOS: July 12, 2012; 12 years ago (2012-07-12) watchOS: September 13, 2016; 8 years ago (2016-09-13)
Operating system	iOS 5 or later iPadOS OS X Mountain Lion or later watchOS 3 or later
Type	Task management
License	Proprietary
Website	www.icloud.com/reminders

Reminders is a task management program developed by Apple Inc. for their iOS, macOS and watchOS platforms that allows users to create lists and set notifications for themselves.^[1] The app was first introduced in iOS 5 and OS X 10.8 "Mountain Lion" and was rebuilt from the ground up with the release of iOS 13.^[2]

Reminders are placed into four categories which can be found at the top of the screen; "Today", "Scheduled", "All", and "Flagged". Users can also create their own lists of reminders. New reminders can be placed into lists or set as subtasks^[3] and can include several details including: a priority tag,^[4] a note about the reminder, and an image or URL attachment.

Tasks appear in the Notification Center 24 hours before the time a reminder is set for. Additionally, alarms can be set for reminders, sending a notification to users at a certain time and date, when a geofence around an area is crossed, or when a message starts being typed to a set contact.^[5] If a time-based alert is set, it can repeat every day, week, two weeks, month, or year.

Reminders can be marked as completed (checked) and are automatically hidden.^[6] Lists can be synced between iOS and macOS through iCloud^[7] as well as shared with other contacts. Once shared, tasks can be added or completed by anyone with access to a list and specific reminders can be assigned to different people.^[5]