# MarginNote 4: AI Notes·MindMap

> Read & Flashcards All in One

Canonical page: [https://chrome-stats.com/d/id1531657269](https://chrome-stats.com/d/id1531657269)

## Overview

- **ID:** `id1531657269`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** Beijing Yunsi Software Technology Co., Ltd
- **Category:** Productivity
- **Rating:** 4.50 / 5 (728 ratings)
- **Version:** 4.4.6
- **Last updated:** 2026-08-23
- **First published:** 2024-05-12
- **Size:** 330 MB
- **Data as of:** 2026-09-24
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/marginnote-4-ai-notes-mindmap/id1531657269)
- **Website:** [http://marginnote.com](http://marginnote.com/)
- **Privacy policy:** [https://dist.marginnote.cn/MarginNote\_Privacy\_Policy.pdf](https://dist.marginnote.cn/MarginNote_Privacy_Policy.pdf)

## Description

MarginNote 4 is an all-in-one study workspace that blends reading, note-taking, mind mapping, and AI-powered flashcards. It helps you preview materials, consolidate ideas, practice, and review with proven study methods.

It delivers visual, smart, and memory-focused tools—Mind Maps, Concept Diagrams, Outliners, Card Boards, AI content detection, auto mind map creation, split-view workflows, backlinks, and FSRS-based scheduling for long-term retention—plus iCloud sync and encrypted sharing across Apple devices.

## Rankings

- #63,518 — Overall

## Review summary

MarginNote 4 is a powerful study tool with strong PDF processing, side-by-side views, and rich, linked notes and mind maps. Reviewers praise its depth and call it indispensable for study. However, repeated issues curb enthusiasm: unreliable iCloud syncing and occasional data loss; a cluttered UI with a steep learning curve and hard-to-find basic features; frequent crashes; inconsistent support with intrusive purchase prompts; and unreliable AI features. Overall, users value the feature set, but reliability and usability concerns dominate sentiment.

### Pros

- Excellent PDF processing and analysis that outperforms many readers
- Side-by-side view and the ability to move sections into their own tabs for focused study
- Rich note-taking capabilities with linked notes, images, and mind maps
- Indispensable study tool for many users despite flaws
- Expanded options and features compared to earlier versions

### Cons

- iCloud/Sync across devices is unreliable or inconsistent
- Cumbersome UI and a steep learning curve with basic features hard to find
- Missing or broken core features (e.g., deleting pages, exporting pages) and occasional data loss
- Support and refunds issues, including frequent prompts and slow responses
- AI features often fail or are unreliable

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Source: [Chrome-Stats](https://chrome-stats.com/d/id1531657269)