Microsoft project management software used to plan, manage, and communicate a project schedule and other information among workgroup members, project managers, and other stakeholders.
AdrianBall3,
If I may add a comment. No, Project Plan 3 (now Planner and Project Plan 3) is not equivalent to Project Standard but the Project Online desktop client which is included with Planner and Project Plan 3 is functionally equivalent as noted in Jay-Tr's opening remarks.
What you tested previously was most likely Project for the Web, which can be described as "watered down" version of Project.
As far as the latest version, yes it is Project 2024. You might want to see my response to this thread: https://answers.microsoft.com/en-us/msoffice/forum/all/how-do-i-buy-ms-project/0c06f2ef-a56e-4d55-83e2-08b154a64460
John