Do I need an enterprise license ?

Hi,

I am working in a very small company (3 persons). We develop an architecture software based on .NET (WPF)

We currently use Unity to do some 3D visualization (and VR in the future). However, that means that we currently have to handle both the application and the Unity viewer (compiled as a Standalone) which is not very clean and practical. We would like to integrate the viewer seamlessly in our application. To do this, we would probably need to access the C++ Unity source code (compile it as DLL and open some functions for a PInvoke call ?)

Can you please confirm that I do need an enterprise license for that purpose ? If yes, is that request exotic ? Would it be affordable for us ?

Thanks in advance !