This is a free tool that helps you learn and refresh your knowledge on any topic.<p>A 12-question quiz is generated for you in seconds. Each question has rich feedback - research shows that reading feedback after guessing is the moment of true learning. Depending on how you do on your quiz, you can do a follow up quiz that is harder or easier.<p>Your quizzes are saved to your account and you can re-do them later.<p>It's a fairly basic MVP - if you like it, I'm curious to know what else you'd want to see.<p>Would love feedback from the HN community!