Your pricing page says "Email in ClickUp" in the Free column, but you cut that feature off after so many uses. It's not free.

Email is also not mentioned in any of the other plans, so how much does it cost?

I just learned that mind maps costs a minimum of $144/year.

Free accounts access it for 100 "uses." Who counts uses or even knows what constitutes a use? I spent at least a few hours playing with mind maps because there was no mention of the limitation on the page where you add the view.