The account starts with the START trial: 15 free days with all features. To keep collaborating afterwards, you need a subscription: open “My subscription” from the left-hand menu (or the avatar at the top right).

My subscription page: monthly or annual commitment and cards for the START, FREE, 2D and 3D plans.
The My subscription page.

Plans are billed per user and valid on all your projects, with a monthly or annual commitment (and a discount for a 3-year commitment):

Prices are shown on the page. Choose the plan and the commitment, then “Request a quote”: our team will call you back to finalise the order. Deployment can be in the cloud (hosted in Europe), on your own servers or in an isolated environment.

Once the subscription is active, the “Company subscriptions” section of this page lists your subscriptions, their dates and the seats used; “Add” assigns a seat to a member of your company.

Without a subscription at the end of the trial, your account switches to read-only: you can still view your projects and those you are invited to, but you cannot write to them.