Reminders App on iPhoneSource: iMore

Nothing is as satisfying as marking a task as completed on your to-do list and watching that list get smaller and smaller. The Reminders app lets you quickly and easily handle tasks the way you want, by either marking them as complete or delete them altogether. You can even choose to show or hide completed tasks on your lists and delete entire to-do lists all at once. Here's how to do it.

How to mark a task as completed in Reminders on iPhone and iPad

When you've finished a task on your list, you can mark it as completed.

  1. Launch Reminders from the Home screen.
  2. Tap the empty circle next to the reminder you want to mark as completed.
  3. Tap Back or close the app.

    Marking Task as Complete in Reminders: Launch Reminder, tap the empty circle next to the reminder, and then tap back. Source: iMore

The circle will fill with the color of your list headline and the next time you open that Reminders list, you won't see the task you mark as completed.

Alternatively, you can also mark tasks as completed if you've set up a scheduled Reminder to give you a notification, right from the lock screen.

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  1. Swipe left on the task notification.
  2. Tap view
  3. Tap Mark as Completed.

    Mark Task Completed From Lock: Swipe left on the task notification, tapview, and then tap mark as completed. Source: iMore

How to delete a task in Reminders on iPhone or iPad

Sometimes you only have to do a task once, and when its done you want to forget about it completely, in those cases, you can quickly delete any tasks so they are permanently gone from the Reminders app.

  1. Launch Reminders your Home screen.
  2. Swipe left on the task you want to complete.
  3. Tap Delete.

    Delete Tasks in Reminders: Launch Reminders, swipe left n the reminder you want to delete, and then tap delete. Source: iMore

How to view completed tasks in Reminders on iPhone or iPad

By default, when you mark a task as completed, Reminders will hide those tasks from view so you can focus on the other tasks you have on your list; however, if you like seeing your to-do list getting checked off as you go, you can always have Reminders show completed tasks.

  1. Launch Reminders from the Home screen.
  2. Tap the options button. It's the three dots in the top right corner.
  3. Tap Show Completed.

    Show Completed Tasks in Reminders: Launch Reminders, tap the options button, and then tap show completed. Source: iMore

How to delete a task list in Reminders on iPhone and iPad

There may come a time when you don't need a whole list of tasks anymore. Perhaps you set up a list for a specific project that is now over, or you don't need a shared list with a colleague anymore. Instead of cluttering up Reminders with lists you don't want around, you can just as easily delete them.

  1. Launch Reminders from your Home screen.
  2. Swipe left on the list you want to delete.
  3. Tap Delete.
  4. Tap Delete on the alert to confirm.

    Delete List In Reminders: Launch reminders, swipe left on the list you want to delete, tap delete, and then tap delete again. Source: iMore

You can delete a list someone has shared with you at any time to remove it from your devices. Doing so will not impact the list on the creator's devices nor any other device with which they've shared. But, if you delete a shared list that you created, it will be removed from all the devices of anyone with whom you shared that list. You can learn more about tasks lists in Reminders by clicking the link below!

How to set up task lists in the Reminders app on iPhone and iPad

Questions?

Let us know in the comments below!

Updated May 2020: Update for most recent version of iOS 13.

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