What is the difference between a CTA and a Button?

The CTA setting allows you to select a Button CTA that contains the HubSpot tracking code and a Button allows you to configure a link that looks like a button

A Button CTA is HubSpot tool that allows you to configure a link that tracks user data associated with views and clicks, can be targeted by audience, and personalized to enhance the UX.

A Button is a clickable link on the page styled to look like a button, which can have the same appearance as a CTA without the additional code and tracking data.

In Power Pro theme, all CTAs and Buttons can be configured using any of the button styles configured in theme settings, including the custom button styles.