MarginNote 4: AI Notes·MindMap

PDF>Mind Maps>Flashcards + OCR

Free · In‑App Purchases

MarginNote 4 – Note-taking, Mind Map & Flashcards in One Study App MarginNote 4 combines reading, note taking, mind mapping, and spaced-repetition flashcards in a single workspace. Preview, attend class, consolidate, practice, review, and remember with proven study methods. KEY FEATURES CRITICAL THINKING * Quick Extend Note: add extra writing space beside any paragraph for insights or questions * Handwriting Layers: show or hide ink to refresh a book for a new round of study ACTIVE LEARNING * Study Set: keep PDFs, EPUBs, videos, and audio in one project and see how they connect * Book Compile: rearrange pages, merge chapters, or insert explanations from other books * Dual-Article View: compare two related documents side by side * Distraction-Free Mode * Fast OCR engine for clean PDF annotation * External Library Access: open files from Zotero, USB drives, and more without copying * Lightning-fast full-text search across notes and files VISUAL LEARNING * Mind Map: build a tree of ideas; choose from 10 branch styles * Concept Diagram: link cards with lines or gestures on an infinite canvas * Outliner: edit and reorder text nodes in bulk * Card Board: sort cards by color or tag in a Zettelkasten-style wall SMART NOTE TAKING * Custom Toolbar: colors, labels, and cloze highlights turn annotation into knowledge coding * AI Content Detection: one-tap extraction of formulas and charts from academic papers * Auto Mind Map creation from up to 10 card properties KNOWLEDGE BRIDGE * Split-view combos and in-app web search keep context at hand * Keyword links automatically surface related notes * Backlinks record page, map position, and timestamp for every card LONG-TERM MEMORY * In-place Flashcard Editor: create front/back cards the moment you excerpt * FSRS spaced-repetition algorithm schedules perfect review times SHARE & COLLABORATE * iCloud sync on iPhone, iPad, and Mac * URL scheme jumps back to any moment in your study * Multi-window and external-monitor support with drag & drop * Presentation Mode records visible actions for live demos * End-to-end encrypted sharing protects your study sets MEMBERSHIP TIERS Basic – Free Read, highlight, and use Quick Extend Note. Browse shared study sets at no cost. Pro – One-Time Purchase Unlock the full iPad experience with Apple Pencil shortcuts, on-device OCR, AI extraction, and multi-window power. Max – One-Time Purchase or Semester Upgrade Get Pro features on every Apple device, plus advanced academic tools on Mac and future platforms. All plans include a 14-day free trial. Cancel anytime in your iTunes settings. Questions? Email service@marginnote.com Terms of Use: https://dist.marginnote.cn/MarginNote_Terms_and_Conditions.pdf Privacy Policy: https://dist.marginnote.cn/MarginNote_Privacy_Policy.pdf

  • 4.5
    out of 5
    624 Ratings

This update focuses on refining the experience and improving stability for AI Book Breakdown and AI OCR. We’ve added a (coarse-grained) screenshot mode for book breakdown with a smoother output workflow, enhanced the Smart Dictionary breakdown and card templates, and made math-heavy and high-frequency card-creation workflows more fluid and controllable. Highlights • AI Book Breakdown (Enhanced Screenshot Mode): Optimized for math/science content with a more coarse-grained screenshot breakdown, making complex formulas and charts easier to turn into structured notes. • Smart Dictionary Breakdown: Introduces automatic title-link creation, supports general concept extraction, adds a dedicated English vocabulary mode, and includes a new Practice Mode for organizing questions into study cards. • AI OCR Card Templates Upgrade: Introduces template-based configuration (the old prompt-only editing mode is deprecated, but existing prompts remain usable). Supports per-field settings (Rich Text/Markdown, cloze, etc.), plus font and color controls. Detailed Updates 1) AI Book Breakdown: More Stable, Clearer Output Workflow • Upgraded to a two-stage workflow: Take notes first → Organize & generate output, breaking the 100-page limit (processing very large batches may require more time and resources). • Reduced overhead in screenshot mode to lower the cost of large-scale screenshot breakdown. • Improved output visibility: makes the “note collection” process more transparent and easier to learn from. • Default output is now Outline/Framework Mode. • Enhanced question-driven prompts to better support theme-based reading and structured understanding. 2) Smart Dictionary Breakdown: Auto Indexing & Auto Linking • New Smart Dictionary breakdown with automatic title-link creation for quick indexing and traceability. • Three modes available: • General Mode: Structured extraction of concepts, theorems, names, places, and more. • English Learning Mode: Specialized extraction for vocabulary and language learning. • Practice Mode: Extracts exercises from documents and organizes them into cards by question number for efficient practice and review. 3) AI OCR: Stronger Card Template System • New Card Template Configuration: • Per-field configuration. • Supports Rich Text or Markdown. • Supports Cloze (fill-in-the-blank) settings. • Rich text fields support custom fonts and colors. • Markdown cloze supports tap-to-reveal answers. • UI improvements for AI OCR. 4) Stability & Fixes • Fixed two crash issues. • Fixed YouTube playback issues. • Fixed an issue where deleting a # tag could invalidate all tags. • Fixed an issue where continuous rectangle excerpts could not use AI OCR.

The developer, Beijing Yunsi Software Technology Co., Ltd, 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 Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Identifiers
  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Identifiers
    • Usage Data
    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

The developer has not yet indicated which accessibility features this app supports. Learn More

  • Seller
    • Beijing Yunsi Software Technology Co., Ltd
  • Size
    • 548.1 MB
  • Category
    • Productivity
  • Compatibility
    Requires iOS 15.0 or later.
    • iPhone
      Requires iOS 15.0 or later.
    • iPad
      Requires iPadOS 15.0 or later.
    • iPod touch
      Requires iOS 15.0 or later.
    • Mac
      Requires macOS 12.0 or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
  • Languages
    English and 3 more
    • English, Japanese, Simplified Chinese, Traditional Chinese
  • Age Rating
    4+
  • In-App Purchases
    Yes
    • 14 days Free Trial $0.00
    • Upgrade to PRO from MN3(iOS) $4.99
    • 14 days Free Trial $0.00
    • Unlock PRO Forever (New) $12.99
    • Unlock MAX Forever (New) $51.99
    • Upgrade to MAX from MN3(macOS) $19.99
    • Unlock MAX based on PRO (New) $40.00
    • Subscription to MAX (Annually) $12.99
    • Subscription to MAX (3 months) $4.99
    • Subscription to MAX (6 months) $7.99
  • Copyright
    • Copyright © 2023 Beijing YunSi Software Technology Co., Ltd. All rights reserved.