The Powered by Convert Pro link or the Credit Link usually appears on the bottom left corner of the screen when a Convert Pro popup is displayed.
This link is nothing but a credit you give to Convert Pro. When clicked, the user will be redirected to our website where he can learn more about Convert Pro.
But, Convert Pro allows you to disable this link too! You can do this by going to Convert Pro Settings -> General Settings
Disable the Show Credit Link option as shown in the image below.