I'm newly using the free account but have a project that involves up to 12 others. Many will not need to edit or change content on the board (a single board within the workspace) but I can't seem to confirm the number of people who can actually use / edit the board in the free plan. It is also a short-term not-for-profit project so there is no significant budget for standard or premium "per user" costs.
Could someone please confirm for me how many members / users (is there a difference between the two) I can have on the free plan?
Also, I understand that many others observe the board without being able to edit. Is that correct?
Thanks, and thanks for your patience with such a basic question 
Nancy