# CAJ文献阅读器 vs 虚拟教研室新版

The clearest difference is in-app purchases: 虚拟教研室新版 at none against CAJ文献阅读器's 3. 虚拟教研室新版 also leads on update cadence (weekly vs every 4 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. CAJ文献阅读器 sells 3 in-app purchases, starting at $2.99 per month. 虚拟教研室新版 asks for nothing beyond the download.

CAJ文献阅读器 ships an update every 4 months, 虚拟教研室新版 weekly. The most recent releases landed on November 3, 2026 and October 30, 2026 respectively.

## The numbers

| Metric | CAJ文献阅读器 | 虚拟教研室新版 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 65.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Weekly** |
| Monetization | Freemium | — |
| Size | 53 MB | 274 MB |
| Requires iOS | **12.0** | 12.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Meitian Trading](https://appshunter.io/developer/1549616114) | [北京中教仪科技有限公司](https://appshunter.io/developer/1639536743) |

## What reviewers say

### CAJ文献阅读器

[App page](https://appshunter.io/ios/app/caj/id1669879414)

This app allows you to easily read and convert CAJ, NH, and KDH document formats, commonly used for academic papers from Chinese academic databases. It supports converting these files to PDF or Word, with OCR capabilities for text extraction from scanned images. You can also import files from messaging apps and manage your reading history.

**Highlights:** Read CAJ, NH, KDH formats, Convert CAJ to PDF, Convert CAJ to Word, OCR text recognition, Import from messaging apps, Reading history management

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 月会员 | $2.99 | per month |
| 季会员 | $4.99 | per 3 months |
| 年会员 | $7.99 | per year |


### 虚拟教研室新版

[App page](https://appshunter.io/ios/app/id6578445930)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CAJ文献阅读器 free?

CAJ文献阅读器 is free to download, with in-app purchases available.

### Is 虚拟教研室新版 free?

虚拟教研室新版 is free to download, with no in-app purchases.

### Do CAJ文献阅读器 or 虚拟教研室新版 have ads?

Neither CAJ文献阅读器 nor 虚拟教研室新版 shows ads.

### Which is updated more often, CAJ文献阅读器 or 虚拟教研室新版?

CAJ文献阅读器 ships an update every 4 months, and 虚拟教研室新版 weekly. Most recently, CAJ文献阅读器 was updated on November 3, 2026 and 虚拟教研室新版 on October 30, 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.*