Noty users can create as many Workspaces as they want to. Keep in mind, though that your conversations will be automatically stored in your primary Workspace.
If you want to store the transcription of your upcoming call in another Workspace, you need to make this Workspace primary. Learn how to do it here.
You should also remember that your subscription is tied to your Workspace. That’s why if you want to have all premium features on two or more Workspaces you’ll have to purchase a subscription for each of them.