vbulletin. Перенос с облачного сервиса на свой хостинг

Do I need to buy a separate vBulletin license?
No, your vBulletin Cloud account includes a license to use while your site is hosted on vBulletin Cloud. If you decide to switch to a self-hosted installation, you will need to buy a license at that time.

Can I export my data so I can switch to a traditional self-hosted forum?
Yes, this can be easily done. Our support team will assist you in this process. All you need to do is pause your site's activity, have our support team provide you a copy of your database, set up your self-hosted site, and import the database into it. You can read about this further here.