BrainDen: Lecture Note Taker
AI Flashcards & Active Recall
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Turn lectures, PDFs, photos, audio, text, and video links into structured notes, flashcards, quizzes, mind maps, and active-recall practice.
Turn lectures and study materials into a complete study system.
BrainDen transforms lectures, PDFs, photos, audio files, text, and video links into structured notes you can edit, connect, annotate, and review.
CAPTURE WITHOUT FALLING BEHIND
• Record live lectures while BrainDen organizes the material
• Upload audio files and PDFs
• Capture textbooks, handwritten notes, or whiteboards
• Import text and supported video links
• Combine multiple sources inside one note
LEARN WITH ACTIVE RECALL
• Generate flashcards from your own material
• Review cards with spaced repetition
• Create quizzes that reveal weak areas
• Build mind maps to see how ideas connect
UNDERSTAND WITH FEYNMAN MODE
Choose a topic and explain it in your own words. BrainDen gives focused feedback, identifies gaps, and helps you turn memorized facts into real understanding.
MAKE EVERY NOTE YOURS
• Edit titles and note content
• Refine selected sections with AI
• Highlight important passages and add inline comments
• Link related notes and source materials
• Organize nested folders and read selected notes together
• Export notes and folders as PDF, Markdown, text, or ZIP
ASK YOUR MATERIAL
Chat with your notes when you need a simpler explanation, an example, or a step-by-step breakdown grounded in your study material.
STUDY YOUR WAY
• Generate study materials in multiple languages
• Continue reading recently opened notes offline
• Use light or dark appearance
• Share useful notes and folders
BrainDen is free to try. Some generation limits and advanced features require BrainDen Pro.
Terms of Service: https://www.brainden.app/terms
Privacy Policy: https://www.brainden.app/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
BrainDen 1.1.1 makes your study materials easier to build, organize, and understand.
• Combine multiple sources in one note, including PDFs and recordings
• Edit notes directly and refine selected blocks with AI
• Highlight passages and attach inline comments
• Organize nested folders and move notes between them
• Add source materials to existing notes
• Read selected notes together and export folders as PDF, Markdown, or ZIP
• Improved recording reliability, navigation, and study-action design
The developer, Ogbemudia Terry Osayawe, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Linked to You
The following data may be collected and linked to your identity:
- Contact Info
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Terry Osayawe
- Size
- 51.6 MB
- Category
- Education
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPad
Requires iPadOS 15.1 or later. - iPod touch
Requires iOS 15.1 or later. - Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- 6-Month Pro Subscription $49.99
- BrainDen Pro - Annual Subscription $99.99
- BrainDen Pro - Monthly $19.99
- Copyright
- © 2026 Terry Osayawe