# 中信书院 vs 墨库

The clearest difference is in-app purchases: 墨库 at none against 中信书院's 10. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 中信书院 sells 10 in-app purchases, starting at $3.99 per month. 墨库 asks for nothing beyond the download.

Both ship on a similar rhythm, roughly monthly. The most recent releases landed on September 22, 2026 and December 23, 2025 respectively.

## The numbers

| Metric | 中信书院 | 墨库 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.9 (7 ratings)](https://appshunter.io/ios/app/id1194887441/reviews)** | — |
| Number of ratings | **7** | — |
| Positive reviews | 39.4% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | Monthly |
| Size | 133 MB | 167 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [CITIC Union Cloud Technology Co., Ltd.](https://appshunter.io/developer/1033442084) | [中华商务贸易公司](https://appshunter.io/developer/1512128906) |

## What reviewers say

### 中信书院

[App page](https://appshunter.io/ios/app/id1194887441)

**Features:** Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 信享会员自动订阅 | $3.99 | per month |
| 6元充值礼包 | $0.99 | one-time |
| 68元充值礼包 | $9.99 | one-time |
| 118元充值礼包 | $17.99 | one-time |
| 信享会员季卡 | $19.99 | one-time |
| 218元充值礼包 | $29.99 | one-time |
| 尊享年卡298 | $39.99 | one-time |
| 388元充值礼包 | $59.99 | one-time |
| 哈佛商业评论&中信书院联合会员卡 | $59.99 | one-time |
| 698元充值礼包 | $99.99 | one-time |


### 墨库

[App page](https://appshunter.io/ios/app/id1550737280)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 中信书院 free?

中信书院 is free to download, with in-app purchases available.

### Is 墨库 free?

墨库 is free to download, with no in-app purchases.

### Do 中信书院 or 墨库 have ads?

Neither 中信书院 nor 墨库 shows ads.

### Which is updated more often, 中信书院 or 墨库?

中信书院 ships an update monthly, and 墨库 monthly. Most recently, 中信书院 was updated on September 22, 2026 and 墨库 on December 23, 2025.

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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.*