Hi I just wondering why the Unity Pro version as requirements?

a) Is it a technical thing, and NoesisGUI uses some feature(s) what only present in Unity Pro? (if yes, may we know what are these features?)

b) It is a pure licensing decision by managers

Thanks in advance

The requirement of Unity Pro is imposed by Unity. Native plugins (and NoesisGUi is a native plugin) are only supported by Unity Pro.

Yes, we also think that this restriction is absurd....