Standard version provides full 2D function, such as creating, editing a drawing or doing other 2D operation. And Standard version supports
ACIS entities displaying and plotting. Standard version also support the Lisp, SDS and DRX application interface.
In addition to all the features that ZWCAD standard version has, the professional version supports the 3D(ACIS) function and VBA.
Professional version supports VBA loading, VBA Editor and VBA Manager. In ACIS aspect, professional version supports ACIS entities creating and editing.
As for the Academy version, it’s marketed for education industry. Its function is the same as Professional version. But when plotting, there will be a watermark around drawing saying that "You are using ZWCAD Academic version" .