Lurner is an interactive study app that turns boring coursework - lectures, slides, PDFs, and videos into short, step-by-step courses with fun, interactive exercises. Get top grades by practicing active recall instead of reading passive outlines. Don't have study materials? Just Ask Lurner to build a personalized micro-course on any topic from scratch. Includes a grounded AI study companion citing exact textbook page numbers and timestamps. Ace your exams today!