# 今知错题本：批量拍照录题，思维导图笔记复习高效整理工具 vs GuruMind

今知错题本：批量拍照录题，思维导图笔记复习高效整理工具 and GuruMind are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. 今知错题本：批量拍照录题，思维导图笔记复习高效整理工具 sells 9 in-app purchases, starting at $0.99 per month and GuruMind sells 3 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

今知错题本：批量拍照录题，思维导图笔记复习高效整理工具 ships an update every 4 days, GuruMind every 3 days. The most recent releases landed on October 23, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | 今知错题本：批量拍照录题，思维导图笔记复习高效整理工具 | GuruMind |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/gurumind/id6757127151/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 4 days | **Every 3 days** |
| Monetization | — | Freemium |
| Size | 28 MB | 296 MB |
| Requires iOS | 17.5 | **16.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [惠桐 董](https://appshunter.io/developer/1822284792) | [名杰 王](https://appshunter.io/developer/1790215066) |

## What reviewers say

### 今知错题本：批量拍照录题，思维导图笔记复习高效整理工具

[App page](https://appshunter.io/ios/app/id6747738523)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 今知错题本月度Pro会员 | $0.99 | per month |
| 今知错题本季度会员 | $1.99 | per 3 months |
| 今知 Max 月度会员 | $2.99 | per month |
| 今知 Max 季度会员 | $5.99 | per 3 months |
| 今知错题本Pro年度会员 | $6.99 | per year |
| 今知 Max 年度会员 | $19.99 | per year |
| 轻量积分卡 | $0.99 | one-time |
| 进阶积分卡 | $2.99 | one-time |
| 畅用积分卡 | $5.99 | one-time |


### GuruMind

[App page](https://appshunter.io/ios/app/gurumind/id6757127151)

This app links PDF annotations to mind maps, allowing you to create linked nodes and jump to original text. It supports detailed note-taking, hierarchical mind maps, and a browser-like navigation for complex knowledge systems. Efficiently review PDF highlights with a flashcard-like mode and generate Anki cards from your notes.

**Highlights:** PDF to mind map linking, Node notes with bidirectional links, Sub-mind maps with browser navigation, PDF annotation notes, PDF review mode, Batch cloze deletion card generation, Smart flashcard creation, Cloud sync and multi-device collaboration

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月度会员 | $0.99 | per month |
| 年度会员 | $6.99 | per year |
| 终身会员 | $14.99 | one-time |


## Frequently asked questions

### Is 今知错题本：批量拍照录题，思维导图笔记复习高效整理工具 free?

今知错题本：批量拍照录题，思维导图笔记复习高效整理工具 is free to download, with in-app purchases available.

### Is GuruMind free?

GuruMind is free to download, with in-app purchases available.

### Do 今知错题本：批量拍照录题，思维导图笔记复习高效整理工具 or GuruMind have ads?

Neither 今知错题本：批量拍照录题，思维导图笔记复习高效整理工具 nor GuruMind shows ads.

### Which is updated more often, 今知错题本：批量拍照录题，思维导图笔记复习高效整理工具 or GuruMind?

今知错题本：批量拍照录题，思维导图笔记复习高效整理工具 ships an update every 4 days, and GuruMind every 3 days. Most recently, 今知错题本：批量拍照录题，思维导图笔记复习高效整理工具 was updated on October 23, 2026 and GuruMind on October 19, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*