SurrealDB Cloud is a managed service: SurrealDB runs in our environment, and you connect from SurrealDB Studio, the SDKs, or the HTTP and WebSocket APIs. Compared to the SurrealDB Studio Sandbox, you sign in (typically with an email) and your data persists in a proper cloud instance.
In SurrealDB Studio you can go from the Sandbox to Cloud with Deploy to Cloud, create an instance, and then point your connection at the new instance instead of Sandbox.
For day-to-day management, see Instances and Organisations in the Manage section.