Currently, Tango Pro pricing is per user. Upgrading one account to Tango Pro requires all members in a Workspace to have a Tango Pro license.
There is one Pro plan with two rates, based on the number of users in your Workspace:
Workspaces with 1–2 users: $22 per user per month when billed annually, or $30 per user per month when billed monthly.
Workspaces with 3 or more users: $15 per user per month when billed annually, or $20 per user per month when billed monthly. This rate applies automatically.
Nonprofit and educational institutions may also qualify for a discount.
For more information on upgrading multiple team members, check out this article.