ADK versus VDN

[Robert Brenstein]

I am starting a new project and need to decide which Valentina 
product to get for it. It is ADK+ versus VDN Platform. For each I get

3 ADK licenses
Valentina Studio license

ADK+ costs $400 and VDN Platform $600. VDN has 2 year of upgrades 
instead of 1 initially, which sort of put them on equal footing 
financially.

The web site says:

Valentina ADK lets you build local database applications with 
Valentina DB and your favorite development environment.

Valentina Developer Network is a special bundle for developers that 
want to deploy a royalty free, OEM version of Valentina Embedded 
Server as a part of local, client-server or web-based data solutions.

We don't care about hiding Valentina that is the OEM part. Removing 
that aspect from the equation, what is the difference? I have built 
web-based data solutions using the ADK product, so application scope 
appears the same. I can't discern anything from Paradigma's website. 
So can anyone enlighten me what are actual, real, practical 
differences between these two products?

Robert