# A.Notes vs CAJ Converter

The clearest difference is review sentiment: A.Notes at 100% against CAJ Converter's 48%. CAJ Converter's advantage is price (Free vs $9.99) and update cadence (every 2 months vs every 5 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

CAJ Converter is free to download; A.Notes costs $9.99 up front. A.Notes sells 1 one-off in-app purchase and CAJ Converter sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

A.Notes ships an update every 5 months, CAJ Converter every 2 months. Both last shipped on November 3, 2026.

## The numbers

| Metric | A.Notes | CAJ Converter |
| --- | --- | --- |
| Price | $9.99 | **Free** |
| Positive reviews | **100.0% of reviews** | 47.6% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Paid | **Freemium** |
| Size | 183 MB | 55 MB |
| Requires iOS | 13.6 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shu Wai Kwong](https://appshunter.io/developer/1535880163) | [Meitian Trading](https://appshunter.io/developer/1549616114) |

## What reviewers say

### A.Notes

[App page](https://appshunter.io/ios/app/anotes/id1535880161)

This app enhances PDF management with features like text recognition, voice-to-text, digital signatures, and password protection. It offers advanced data capturing using AI and supports over 50 languages for speech recognition and 35 for online translation.

**Highlights:** AI-powered data capturing, PDF annotation and signing, Voice-to-text and speech recognition, OCR and text recognition, Online translation, Password protection for PDFs, Calendar integration

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| A.Notes version 1.3 | $18.99 | one-time |


### CAJ Converter

[App page](https://appshunter.io/ios/app/caj-converter/id1603045684)

Easily convert Chinese academic journal files (CAJ, NH, KDH) into PDF or Word documents. Extract text for editing or create clear PDF versions for reading and sharing.

**Highlights:** Convert CAJ to PDF, Convert CAJ to Word, Text recognition for Word conversion, Preview before PDF export, Supports .caj, .nh, .kdh formats

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

**In-app purchases (3)**

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


## Frequently asked questions

### Is A.Notes free?

A.Notes costs $9.99, and also offers in-app purchases.

### Is CAJ Converter free?

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

### Do A.Notes or CAJ Converter have ads?

Neither A.Notes nor CAJ Converter shows ads.

### Which is updated more often, A.Notes or CAJ Converter?

A.Notes ships an update every 5 months, and CAJ Converter every 2 months. Most recently, A.Notes was updated on November 3, 2026 and CAJ Converter on November 3, 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.*