After you complete an action or project in Everdo, it will appear in the Done section of the current view. This is useful when you need to review what you have done recently, or need to un-complete something. But at some point many old completed actions would accumulate in Done, cluttering the app.
The purpose of the Archive is to hide the actions and project you have completed, but no longer need to see.
Archiving Individual Items and Projects
In the desktop app, you can drag-and-drop an item into the Archive navigation item in the Navigation Area.
NoteManually archiving an action or a project will also mark it as completed.
Archiving All Completed Items and Projects
In every Everdo app, you can open the Archive by clicking the corresponding navigation item, then use a corresponding button or the app menu to move all completed items to the archive in one go.