People occasionally ask which they should do first, use the free tools or buy one of the courses, as if the honest answer might be "whichever makes more money for you." It is not. The honest answer is: try the free tool first, every time, and only look at a course if you hit its edge.
The free tools solve a specific, bounded problem, right now, in your browser, for free. If your need is "write a stronger resume bullet" or "rehearse this one negotiation," the tool does that completely. There is no upgraded version of that specific job waiting behind a paywall. Buying a course to solve a problem a free tool already solves is just a worse way to spend the same twenty minutes.
The courses exist for a different, bigger question: not "solve this one task" but "teach me the underlying method so I can do this myself, on tasks I have not thought of yet." That is genuinely worth paying for if it is what you actually want, and genuinely not worth paying for if a free tool would have been enough. I would rather you use the free tools forever and never buy anything than buy something you did not need.