License for 1 application

The regular license says it is sold for 1 application.
I bought a tempalte license to use it on 1 Magento installation.
But this Magento is displaying pages on 2 domain names.
Should I buy 2 licenses ?
I consider I use it on 1 application = 1 Magento instance.
Correct ?

If you’re using the same theme on two domains ( doesn’t matter if it’s like / ) you need to get another copy of the theme