# 豆丁阅读 vs 开放云书院

The clearest difference is review sentiment: 豆丁阅读 at 69% against 开放云书院's 19%. 豆丁阅读 also leads on rating (3.4 vs 2.0) and iOS requirement (9.0 vs 12.0). 开放云书院's advantage is in-app purchases (none vs 7) and ratings volume (620 vs 5). On price, update cadence and device support there is nothing between them.

Both are free to download. 豆丁阅读 sells 7 one-off in-app purchases. 开放云书院 asks for nothing beyond the download.

豆丁阅读 holds the better App Store score, 3.4 against 2.0. That said, the two scores are not equally well evidenced: 开放云书院 has 620 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 69% of 豆丁阅读's written reviews are positive against 19% of 开放云书院's.

豆丁阅读 ships an update every 3 months, 开放云书院 every 6 weeks. The most recent releases landed on October 30, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | 豆丁阅读 | 开放云书院 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.4 (5 ratings)](https://appshunter.io/ios/app/id490618045/reviews)** | [2.0 (620 ratings)](https://appshunter.io/ios/app/id979093695/reviews) |
| Number of ratings | 5 | **620** |
| Positive reviews | **68.9% of reviews** | 19.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 52 MB | 121 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 12+ |
| Developer | [DocIn](https://appshunter.io/developer/364513947) | [Open University of China Press Co., Ltd.](https://appshunter.io/developer/1486769998) |

## What reviewers say

### 豆丁阅读

[App page](https://appshunter.io/ios/app/id490618045)

Access a vast library of books and documents, with support for various formats and offline listening. Enjoy a customizable reading experience with gesture controls and easy content synchronization from your PC.

**Highlights:** Massive book and document resources, Offline listening for various formats, Customizable third-party book sources, Gesture-based reading controls, Wi-Fi content synchronization, Support for EPUB, TXT, PDF, DOC, PPT, UMD

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 600豆点 | $0.99 | one-time |
| “讯飞语音包” | $1.99 | one-time |
| 1200豆点 | $1.99 | one-time |
| 3000豆点 | $3.99 | one-time |
| 5000豆点 | $6.99 | one-time |
| 10800豆点 | $14.99 | one-time |
| 61800豆点 | $89.99 | one-time |


### 开放云书院

[App page](https://appshunter.io/ios/app/id979093695)

**In-app purchases:** none


## Frequently asked questions

### Is 豆丁阅读 free?

豆丁阅读 is free to download, with in-app purchases available.

### Is 开放云书院 free?

开放云书院 is free to download, with no in-app purchases.

### Which has better reviews, 豆丁阅读 or 开放云书院?

豆丁阅读 is rated higher. 豆丁阅读 averages 3.4 out of 5 from 5 ratings, while 开放云书院 averages 2.0 from 620 ratings.

### Which is updated more often, 豆丁阅读 or 开放云书院?

豆丁阅读 ships an update every 3 months, and 开放云书院 every 6 weeks. Most recently, 豆丁阅读 was updated on October 30, 2026 and 开放云书院 on October 29, 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.*