View completed tasks
View completed tasks in a list
To see completed tasks in a list, click the toggle button located at the top right corner and switch on "Completed tasks".
View completed tasks in Schedule views
In the Schedule views, like the Daily Planner, Weekly Planner, Weekly Calendar, and Monthly Calendar, just click the ellipsis icon in the top right corner and choose "Show completed tasks (and events)".
View completed tasks in the mobile app
Click the "Assignee" filter button, then select "Show completed tasks".