Techniques are described for obtaining and displaying user activity information. For example, user activity information can include an application identifier, a content identifier, and a relevance identifier. A summary display is rendered for display that presents user activity information for user activities meeting relevance criteria. A user can select to view an activity details view, presenting information regarding all of their activity over a time period. A user can search for activities meeting particular criteria, and can view past activities along with applications currently being executed by the user.