Knowt provides a robust and comprehensive free Basic tier that gives users access to unlimited flashcard creation, note-taking, and core study modes without requiring payment. However, it is not entirely free across all advanced features, as the company offers an optional paid tier called Knowt Ultra. The Ultra subscription costs money to unlock unlimited advanced AI summaries, specialized teacher tools, and heavy usage limits on AI tutoring assistance. Nonetheless, the fundamental features required for everyday student studying remain accessible on the free plan.