General licence questions

Thinking about getting audirvana. Already had the Test version but no time to play around with it. Whatsoever!

Probably I would like to switch the computer in the next time. Is it possible to transfer the licence to a new computer? What is the idea of audrvana plus? I would like to be able to run audirvana from different pc s at my home. Would the ±version be the right one?

Thanks for any hints on that subject.