If you need more space or want professional features, you can subscribe to a Pro workspace, which gets associated with your existing Bubbles account. If you get a Pro workspace, you still get to keep your personal workspace, along with its 1GB of storage.
Each Pro workspace comes with a single seat for you to use. You can purchase additional seats for the Pro workspace and invite others to join you. Pro workspaces get 5 GB of storage for each seat.