After purchasing your domain name at GoDaddy, you can connect your GoDaddy domain name to UltimateWB web hosting just by pointing your domain's nameservers to it. GoDaddy can help you with this process, and we can also if you would like.
We do offer domain name registration at https://www.ultimatewb.com/domain-names-web-hosting#domains , but you are free to use your domain name registered at another company, provided they allow it. GoDaddy is a domain name registrar and does allow it. Hosted website builders such as wix, weebly, shopify, socialgo, or ning, for example, do not and also force you to use their website builders / web hosting (in which case you should be able to transfer your domain name to UltimateWB or another company if you want to switch web hosts and use UltimateWB software).
The UltimateWB Full software has lots of social networking apps, including a built-in forums app. You can purchase this here: https://www.ultimatewb.com/buy . Compare UltimateWB forums app to other forum software in the comparison chart here. Compare UltimateWB with other social networking website builders in the comparison chart here.
You can choose the UltimateWB web hosting package you would like here: https://www.ultimatewb.com/domain-names-web-hosting . All UltimateWB web hosting packages include free professional installation of UltimateWB software onto your web hosting (still requires purchase of the software though).