My OP was dormant for so long that I failed to check back, but now I see some interesting (and disheartening) updates.
Anyone contemplating purchasing any product that relies on software from the "new" Moog should think twice and consider what that piece of equipment can do without that software. And after thinking twice they should just say no. What a disgrace.
If the theremin community represented a larger slice of the general population I would be inclined send this to Louis Rossman's YouTube channel. I'm a bit wary of the guy but he is an absolute bulldog advocate for ownership versus being at the mercy of the whims of companies to be able to brick your products at will. We aren't bricked, but we are hobbled.
There is no valid reason that the Claravox software could not be made available in some format that could be used or adapted for use before they decided to kiss it off and wash their hands of the product. Buying into the Apple ecosystem just for the theremin is not an option, if the iPad version is even still available. The Moog message quoted by Andre earlier with its "if and when" kind of says it all.
I would guess that the number of Claravox owners that are Windows or Android dependent is not very great, and those like me that DO for now have an installation of the app on at least one computer or device might not foresee the problem this could be. And unfortunately my single installation is now on a laptop that is dedicated for another use and not handy to connect to the theremin.
I have looked for methods to transfer a previously installed program to another computer but the manual methods that I have tried by following instructions written by people a lot more savvy than myself have all failed. I will look into the software described earlier in this thread, but I see that it is pretty expensive if the 5 free transfers don't work out or if they are limited in scope.
If we had the influence to shame Moog it would be interesting to make a nice D-Lev adaptation (insert) to replace the electronics that "Moog failed to support and thereby effectively hobbled operation" after such a short period of time. The adaptation might need to happen at some point, but we'll probably never have the voice to influence anyone.
Thanks for all the inputs. Any more updates on this topic would be appreciated, particularly those related to transferring an installed program from one PC to another. I think my attempts fell apart due to the inability to properly register some dll file or files, and I don't know what I'm doing at that level anyway.