BrainDen: AI Study Companion

Now with full-text search, study streaks, note linking, export to PDF/Markdown, and offline mode.

BrainDen is an AI study app that turns lectures, PDFs, YouTube, and text into smart notes, flashcards, quizzes, and mind maps. Record lectures to get instant transcription and organized notes, so you can focus on learning.

RECORD LECTURES, GET INSTANT NOTES Just hit record. BrainDen transcribes your lectures and generates organized, comprehensive notes automatically. No more scrambling to write everything down - focus on learning.

TURN ANYTHING INTO STUDY MATERIALS

• Record live lectures
• Upload audio files
• Paste YouTube links
• Import PDFs and documents
• Snap photos of textbooks
• Type or paste any text

BrainDen's AI transforms all of it into structured notes, flashcards, quizzes, and mind maps in seconds.

Study in your language (30+ languages) Generate notes, flashcards, quizzes, and mind maps in your preferred language.

SMART FLASHCARDS THAT ADAPT TO YOU Our spaced repetition system tracks what you know and what you're forgetting. Cards appear right when you need to review them — so you remember everything, not just cram and forget.

FEYNMAN MODE: THE SECRET TO MASTERY "If you can't explain it simply, you don't understand it well enough."

Feynman Mode challenges you to teach concepts back to AI tutors. Explain topics in your own words, get instant feedback, and discover gaps in your understanding. This is how top students actually learn.

AI-GENERATED QUIZZES Test yourself with automatically generated questions from your notes. Identify weak spots before your exam does.

VISUAL MIND MAPS See how concepts connect. BrainDen creates beautiful mind maps that help you understand the big picture and remember relationships between ideas.

ASK AI ANYTHING Stuck on a concept? Ask BrainDen's AI tutor to explain it differently, give examples, or break it down step by step.

WHY STUDENTS LOVE BRAINDEN

• Save hours of manual note-taking
• Actually remember what you study
• Identify weak spots before exams
• Learn actively, not passively
• Study anywhere on your phone
• Works with any subject or topic

WHAT YOU GET

Free:

• 3 recordings
• AI notes, flashcards & quizzes
• Mind maps
• Create smart note from PDF, Lecture notes and Images

Premium:

• Unlimited recordings
• Feynman Mode
• Priority AI processing
• Create smart note from YouTube, Instagram, TikTok links

Download BrainDen now and start studying smarter. Your future self will thank you.

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