TasksBoard has a Free tier and a Premium tier.
In the free tier of TasksBoard, you can share up to 5 lists with any TasksBoard account whether they are Premium or not.
On the premium tier, you have access to all the Premium features plus you can share unlimited lists with free and premium users.
Please note that the limit persists on free tier accounts and they will only be able to share a maximum of 5 lists with you.
For example, you will be able to share 1 list with 10 users for a total of 10 shared lists.
If you need to get your team on TasksBoard premium, we recommend the Team Premium plan as it allows you to invite all your teammates to your plan in one click.