Like GP I was also confused and tried looking for a pricing page but failed. Seems like there isn't a link to it from https://app.codecrafters.io/catalog https:

Like GP I was also confused and tried looking for a pricing page but failed. Seems like there isn't a link to it from https://app.codecrafters.io/catalog https://app.codecrafters.io/catalog which is the site you go to if you click the big CodeCrafters logo in the top left of the page. There is a "Subscribe" button which takes you to https://app.codecrafters.io/pay https://app.codecrafters.io/pay but I wasn't savvy enough to notice it or realize what it was. Only after starting a course did I begin to suspect that I needed to subscribe since there were a bunch of locks all over. However, it was not clear that the locks actually did anything since I could still click on those links. I guess I would have found out after completing the first step and not being able to progress. This appears to be by design, which strikes me as slightly dishonest.