You can use VideoScribe on as many computers as you wish.
You can only sign into your account on one computer at a time and as per the user terms, you cannot share your username and password with anyone.
You can download on both Mac and Windows. There's no difference.
Ken L
That is, on both of my Macs. I also have a Windows 10 machine. I think I mainly will run VideoScribe on the Mac but in case I want to try it on Windows 10, can I do that too? (is there any difference?)
I hope to let my dad try it as well, but if my dad doesn't live with me in the same house, can he use it?