How do the Microsoft Project Plans Compare?
As ProjectPro and ProjectPro for O365 are no longer available, there are 3 new options for Project.
Please see the table below that compares the features for Microsoft Project Online Essentials, Professional and Premium:
Project Online Essentials is a team member/contributor add-on for customers that have Project Online Professional or Project Online Premium. Hence when active this does not appear as a project tile in the user's O365 portal.