Can I use a product I purchased on more than one website?
The exception to this policy is if you plan to discontinue using your EmPress product on one website, and instead want to use it on another entirely. For information on how to change which domain name connects to your EmPress product licenses, click here.
You were blogging at BlogNameA.com, but have changed your site's domain name to BlogNameB.com
Yes, in this instance, you can edit the domain name your product license key(s) are attached to using the instructions outlined here. You do not need to purchase a new version of the theme, nor would you need to re-install your EmPress .zip files, since updating your website's domain name shouldn't change the information/data stored on your host server.
You blog at BlogNameA.com, and are launching a separate website to run alongside it, named ShopNameA.com. BlogNameA.com will continue using an EmPress theme, and you want to use the same EmPress theme at ShopNameA.com
In this instance, you must purchase a separate license and fresh theme .zip file for the second website you plan on launching.