ActCAD Standard is mainly suitable for 2D Drafting. It can view 3D Models but cannot create. It has all comamnds and tools to create any professional project in 2D. Custom Programs can be developed and used.
ActCAD Professional is suitable for 2D Drafting and 3D Modeling (Unparametric). It can view, edit and create 3D Models. Custom Programs can be developed and used. Many extra commands avaialable compared to Standard.
ActCAD Prime is has all features of Professional with capabilities to read Revit and IFC files. AEC entities like doors, windows, walls, roofs etc. can be created easily. Custom Programs can be developed and used.
ActCAD Map Drafter is meant for Map digitization projects. It has all features of Standard in additon to special Map cummands. Custom Programs can be developed and used.