No. You can add as many team members as you want to your integration's
account, and only pay for the ones that use Ganttify and need to be able to edit and
create Gantt charts.
If you have a team of 10 people, but only 3 of them need to be able to edit and create Gantt
charts, you only need to pay for 3 seats. If it's just you, a single user license is all you
need.