Do I have to buy a domain to try out Hostbaby?

From HostBaby Wiki

In order to try out our services at HostBaby, you will need to OWN a domain name. Although, you don't need to purchase a domain name from us. If you already own a domain name, you can simply sign up with that domain.

If you do not already own a domain, we will need to register one for you in order to get started. We charge $11.99/year for domain name registrations. Keep in mind that even if you decide not to host with us after the free trial, the domain name will still be yours for the year, which you can use with another hosting service.