Aryan Regular License
All of the licenses on the Envato Marketplaces are single-use licenses so if you purchase Aryan Listing & Directory WordPress theme you are allowed to use its regular license for One Live Site and One Test Site
What is Test Site?
The test site is actually the staging website by which you can upload your website over there for testing or development purposes.
While Live site is your Real Website where you can host it easily.
If you need to use it on a second site or multiple sites, it requires you to purchase a separate regular license for each individual directory site.
For more information, you can read Envato Regular Licence here