Coursepress Free vs. Pro feature list

I’m unable to differentiate between free and pro features. I’ve seen KB articles stating they are different. However, I also found the following on https://wordpress.org/plugins/coursepress/

Does the free version of CoursePress have any limitations?

Nope! All of the course management features in the free and pro versions are exactly the same.

Would you please clarify of point me to a feature comparison listing. Thx.