Contributors can use the Mac app and share their designs on your team’s Cloud workspace. Viewers don’t have access to the Mac app, but can view, inspect and comment on designs in the browser. You can add unlimited Viewers to your team for free. Your bill is based on the number of Contributors you have and you can change this at any time. Note: We’ll always charge for one Contributor so long as your team is active, even if no-one in your team uses the role.