# CAJ文献阅读器 vs 知网cnki

The clearest difference is review sentiment: CAJ文献阅读器 at 65% against 知网cnki's 0%. 知网cnki's advantage is in-app purchases (none vs 3) and update cadence (every 3 weeks 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. 知网cnki asks for nothing beyond the download.

CAJ文献阅读器 ships an update every 4 months, 知网cnki every 3 weeks. The most recent releases landed on September 28, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | CAJ文献阅读器 | 知网cnki |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.3 (4 ratings)](https://appshunter.io/ios/app/cnki/id6445806100/reviews)** |
| Number of ratings | — | **4** |
| Positive reviews | **65.0% of reviews** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 3 weeks** |
| Monetization | Freemium | **Free** |
| Size | 53 MB | 19 MB |
| Requires iOS | 12.0 | **11.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Meitian Trading](https://appshunter.io/developer/1549616114) | [CGIT](https://appshunter.io/developer/1635092243) |

## 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 |


### 知网cnki

[App page](https://appshunter.io/ios/app/cnki/id6445806100)

Access a vast collection of global academic resources, including international journals, research papers, and literature. Features include document translation, CAJ file viewing, and intelligent search to help you discover and utilize academic content.

**Highlights:** Access international journals and research papers, Document translation (PDF/Word), CAJ file viewer with original layout, Integrates millions of academic resources, Intelligent search and discovery, Supports various resource types (theses, patents, etc.)

**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 知网cnki free?

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

### Do CAJ文献阅读器 or 知网cnki have ads?

Neither CAJ文献阅读器 nor 知网cnki shows ads.

### Which is updated more often, CAJ文献阅读器 or 知网cnki?

CAJ文献阅读器 ships an update every 4 months, and 知网cnki every 3 weeks. Most recently, CAJ文献阅读器 was updated on September 28, 2026 and 知网cnki on October 2, 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.*