Can someone tell me what the difference is?
When do I start paying more per person?
Well, this is somewhat misleading, every Active user is paid user on a paid plan (note that Observer or Guest are free), Unlimited here is to just highlight Free plan limitation
And how do I invite guests?
I can’t find that option!
Guests can only be granted access to specific entities, so you can’t invite them into the whole workspace - instead you share specific items with them.
