Create account in Subutai HUB
Without registering peer in Subutai Hub, peer will not be stored in it's Hub, so peer will not have access to Bazaar.
You will have local Subutai that can create environments, clusters and download public plugins.
You can see status in header if it is green then the registration was successful.
Now by clicking Hub icon in Subutai, you can go to Hub, Send Heartbeat and Unregister peer in it's Hub.
Heartbeat is way of communication of Subutai and its Hub (It is ping to hub). When sending heartbeat, peer will send data that peer is alive. and available in Hub to communicate with other peers.
After registering your peer in Hub it is open and default pricing is "free". In order to change it you need to set price.