MarginNote 4: AI Notes·MindMap
Beijing Yunsi Software Technology Co., Ltd Productivity iPhoneiPadiPod touchMac
MarginNote 4: AI Notes·MindMap is a free Productivity app for iPhone and iPad by Beijing Yunsi Software Technology Co., Ltd. Rated 4.5/5 from 733 ratings.
- Rating
- 4.5
- 733 ratings
- Price
- Free
- on the App Store
- Size
- 330 MB
- Age 4+
- Updated
- Aug 23
- 2026 · v4.4.6
Screenshots
About MarginNote 4: AI Notes·MindMap
MarginNote is the PDF study tool for deep readers. One excerpt is a PDF highlight, a mind map node, and a flashcard — one capture, three places. This is the Card Axis architecture, so you stop ferrying content between a PDF reader, a notes app, and a flashcard tool. A decade of iteration. 188K+ App Store ratings. 【Four Featured Mechanics】 ▸ Card Axis — One excerpt, three renders. Document highlight, mind map node, and flashcard are the same card seen from three angles. ▸ Title Link — Old notes auto-surface in new documents. When a familiar concept appears in what you're reading, your past annotation lights up on the page. ▸ Extended Note — Long-press anywhere on a PDF to open writing space. No anchored text required; three display modes (inline / margin / collapsed). ▸ Immersive Mode (4.4) — Three-state toggle: Read / Write / Recall. UI folds away. Recall blurs excerpts with Gaussian blur — tap to reveal only after you've actually recalled. 【AI Capabilities (introduced in 4.2)】 AI book breakdown · AI OCR templates · AI translation · AI Q&A · AI flashcard generation Our stance is AI as assistant, not replacement — every suggestion can be saved as your own thinking node, never thinking for you. 【Apple Intelligence (iOS 26+)】 Recall Mode hints can run on-device via Apple Intelligence — pick "Apple AI" or "cloud LLM" in Settings. With Apple AI selected, three tiers of help — Neighbor Coordinate · Reasoning Prompt · Key Distinction — are generated by Apple Foundation Models right on your device: no network calls, no AI credits used, your notes never leave your device. Even if you've selected cloud LLM, going offline auto-falls back to Apple Intelligence (provided your device supports it) — so libraries, planes, and exam-day silent rooms never break your hint loop. 【Full Workflow】 Fast OCR · Study Sets (PDF / EPUB / video / audio) · direct read from Zotero / cloud drives / USB · 10 mind map styles · book recomposition · dual-document compare · concept maps · handwriting layers 【FSRS Spaced Repetition】 Built on the open-spaced-repetition project's algorithm (paper accepted by ACM SIGKDD; Anki has used FSRS as its default scheduler since v23.10). Push short-term memory into long-term. 【Built For】 Anyone re-reading a single document until it sticks — med school (USMLE / MCAT) · law school (LSAT / bar exam) · grad prep (GRE / GMAT / CFA) · researchers · language learners (IELTS / TOEFL) · serious readers. 【All Apple Platforms】 iPhone + iPad + Mac under one Apple ID. iCloud syncs Study Sets, notes, and review progress. Native Apple Pencil support on iPad. — Questions? Email [email protected] Terms: https://dist.marginnote.com/MarginNote_Terms_and_Conditions.pdf Privacy: https://dist.marginnote.com/MarginNote_Privacy_Policy.pdf
Ratings & reviews
4.5
733 ratings
What’s new
Version 4.4.6 · Updated August 23, 2026
This update adds an in-app Message Center and continues to improve AI Extract Questions, study set document management, Markdown text boxes, handwriting, version history export, and overall stability. AI Extract Questions - After AI Extract Questions is complete, use “AI Read-Through & Re-Breakdown” on chapters with unsatisfactory splitting. AI re-evaluates question or content-unit boundaries and rebuilds the cards from the original text. - Improved recognition of specially formatted documents, reducing separated choices, merged questions, and missed questions. Message Center - Added an in-app Message Center for official messages and product updates. Study Set Management & Backup - Added “Organize by Source Path” for study set documents, with collapsible hierarchies for local files, iCloud Drive, and external folders. - Missing source documents can now be re-linked. - Added duplicate card detection and repair for study sets. A protective backup is created before repairs are applied. - Study set backups can be exported without version history, with the five most recent versions, or with all versions. MarginNote Agent AI Breakdown (Lab) - MarginNote Agent organizes long documents chapter by chapter into structured mind maps. It supports General Breakdown, Original Book Structure, Key-Point Q&A, and Terminology Dictionary tasks. - Review and refine results chapter by chapter, and view or restore previous chapter versions. - Supports automatically applying card color styles. - MarginNote Agent uses MarginNote’s built-in AI service. Running tasks consumes MarginNote credits. - To use this feature, enable MarginNote Agent in Settings > Lab. Other Improvements & Fixes - Fixed Markdown text boxes failing to render, overflowing, disappearing, or displaying incomplete content. - Fixed font, color, and other formatting being lost after moving text boxes across pages. - Reduced memory usage when loading Markdown caches and large study sets. - The card editor now supports pasting copied handwriting strokes. - Improved handwriting rendering performance when zooming and scrolling large mind maps. - Fixed handwriting being incorrectly disabled after leaving Immersive Mode. - Fixed a potential crash after exiting handwriting mode. - Fixed automation settings for different excerpt tools overwriting one another. - Fixed compatibility issues affecting some mind map branch styles. - Fixed existing layouts and styles being reset when inserting a table of contents or grouped content. - Fixed incorrect PDF export ranges for collapsed pages. - Fixed crashes caused by invalid crop dimensions on certain malformed PDF pages. - Fixed an iPad issue where incorrect settings pop-up heights clipped the bottom input fields.
App privacy
The developer, Beijing Yunsi Software Technology Co., Ltd, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers: Device ID
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Identifiers: Device ID
- Usage Data: Product Interaction, Other Usage Data
- Diagnostics: Crash Data, Other Diagnostic Data
Used for: Analytics
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