first, let me tell you that with spotting your App I'm so relieved and excited about my new project.
I've tested your app and it just works very well. Some small Bugs (Do you want us to report them somewhere?) but still very well.
Before I get the Pro Version I'd really appreciated if you'd clarify some things for me:
With a camera that has Wifi (Canon or Nikon I dono yet) I will set up an iPad Pro and a DNP DS 620.
2 problems for me there:
How do I let the systems talk to each other AND have Internet at the same time.
When I decide to go for the DNP DS 620 would I really need to spend the extra 250 for the WPS Pro? There gotta be a cheaper solution?

I really appreciate your work here in the Community.
Best regards
Johann