[Win2016] Amount of RAM needed?

You guys are the only ones that have a “cloud” that can run naitve on Windows Server, thank you for that!
Aldo it’s a 32bit application so I’m guessing that it can only use 3,7GB of RAM as max, and that’s a same - maybe you 'll upgrade it to 64 bit in the future?

Anyway, how long do I get on the limit of RAM that 32 bit application takes me?
Ruffly how much RAM do I need per user?