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Short AI crafted courses on any topic. Learn in minutes, then review to retain
Learn anything. Remember it. Knowledge Loop turns any subject into a short, interactive course you can finish in a few sittings. Pick a topic, get a focused 4–6 chapter course, and start learning straight away. Learn through explanations, quizzes, exercises, timelines and flashcards, then come back later to review what you've learned. COURSES ON ANYTHING Curious about black holes, the fall of Rome, or how fermentation works? Type in a subject or choose from suggestions based on your interests. Each course breaks the topic into manageable chapters and mixes clear explanations with interactive activities, so you're doing more than just reading. GROUNDED IN REAL SOURCES Course content draws on Wikipedia and open research, with key terms linked directly to their Wikipedia entries. Something unclear? Ask Jimmy, your in-app learning companion, whenever you need help understanding a topic. DISCOVER NEW INTERESTS Swipe through short facts and rate the ones that interest you. Your ratings help shape the courses you're recommended and how deeply you explore each subject. REMEMBER WHAT YOU LEARN Knowledge fades if you don't revisit it. That's why completed chapters return in Review at spaced intervals, helping you retain what you've learned. Master a course by explaining it back to an AI coach, then continue with a follow-up course that builds on your knowledge. STAY MOTIVATED Earn XP, maintain a daily streak, unlock badges across eight tiers and climb the weekly leagues. Collect gems from the daily chest and spend them on streak freezes, XP boosts and targeted course suggestions. LEARN WITH FRIENDS Add friends by username or invite link, share completed courses, compare progress on profiles and earn a certificate for every course you complete. YOUR LANGUAGE Available in English and Spanish, with course content written natively in each language. START WITHOUT AN ACCOUNT No account is needed to get started. Save your progress with just an email whenever you're ready. Knowledge Loop is free to use every day, with optional Premium for more courses and higher limits.