Is there a demo version of the ultimate full option? If not, do I need to specify a domain at the time of purchase of the product?

Hi David,

Yes, there is a demo of all UltimateWB software versions, including the Full version: https://www.ultimatewb.com/demolinks .

You need to specify a domain name either at purchase, or after purchase - it is necessary to specify your domain so that the software license file may be created to activate the software.