The Core Clustermarket subscription is a single annual fee for unlimited users, equipment and bookings in the lab.

The Clustermarket Premium subscription is charged on an annual basis and is based on the number of user seats with access to your lab. These user seats are permanent and interchangeable with your lab users, so you can remove and add people whenever you need to.
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You can continue to add more users throughout the subscription. These additional seats would be charged for at the end of the subscription period on a pro rata basis.
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To put this in an example, if you have a subscription for 50 users in your lab, you could remove 5 users and then add 5 more, and your billing will not change as you still are within your 50 user seats originally purchased. 10 months into your subscription, if you added another user and had 51 lab users for 2 months, you would receive a bill at the end of the subscription charging for the additional user for the 2 months on a pro rata basis.

If you have any questions around how the subscription is charged, please contact us at support@clustermarket.com