# ARNBOOK vs CATC e

The clearest difference is in-app purchases: CATC e at none against ARNBOOK's 17. CATC e also leads on iOS requirement (12.0 vs 15.5). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. ARNBOOK sells 17 one-off in-app purchases. CATC e asks for nothing beyond the download.

ARNBOOK ships an update every 3 weeks, CATC e fortnightly. The most recent releases landed on September 23, 2026 and September 14, 2026 respectively.

## The numbers

| Metric | ARNBOOK | CATC e |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.2 (5 ratings)](https://appshunter.io/ios/app/arnbook/id1543409494/reviews)** | — |
| Number of ratings | **5** | — |
| Positive reviews | 42.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Fortnightly** |
| Monetization | Free with in-app purchases | — |
| Size | 117 MB | 19 MB |
| Requires iOS | 15.5 | **12.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [ARN BOOK COMPANY LIMITED](https://appshunter.io/developer/1543409856) | [BOOKDOSE COMPANY LIMITED](https://appshunter.io/developer/459445000) |

## What reviewers say

### ARNBOOK

[App page](https://appshunter.io/ios/app/arnbook/id1543409494)

This app facilitates the buying and selling of both physical books and e-books in one place. It aims to support writers and publishers through digital channels, making it easier for readers to discover books they'll love. Features include pre-orders, print-on-demand, and a unified shipping service for books from different publishers.

**Highlights:** Buy physical books and e-books, Support writers and publishers, Pre-order books with premium benefits, Print-on-demand service, Read samples before buying, Unified shipping for multiple publishers, Loyalty program and discounts

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

**In-app purchases (17)**

| Purchase | Price | Billing |
| --- | --- | --- |
| สินค้าราคา 109 บาท | $2.99 | one-time |
| สินค้าราคา 129 บาท | $3.99 | one-time |
| หนังสือราคา 249 บาท | $6.99 | one-time |
| สินค้าราคา 249 บาท | $6.99 | one-time |
| หนังสือราคา 299 บาท | $7.99 | one-time |
| หนังสือราคา 349 บาท | $9.99 | one-time |
| สินค้าราคา 349 บาท | $9.99 | one-time |
| สินค้าราคา 399 บาท | $9.99 | one-time |
| หนังสือราคา 329 บาท | $10.99 | one-time |
| หนังสือราคา 399 บาท | $10.99 | one-time |
| หนังสือราคา 429 บาท | $11.99 | one-time |
| สินค้าราคา 429 บาท | $11.99 | one-time |
| หนังสือราคา 399 บาท | $12.99 | one-time |
| หนังสือราคา 479 บาท | $12.99 | one-time |
| สินค้าราคา 499 บาท | $12.99 | one-time |
| หนังสือราคา 449 บาท | $14.99 | one-time |
| หนังสือราคา 549 บาท | $14.99 | one-time |


### CATC e

[App page](https://appshunter.io/ios/app/catc-e-library/id1603568372)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is ARNBOOK free?

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

### Is CATC e free?

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

### Do ARNBOOK or CATC e have ads?

Neither ARNBOOK nor CATC e shows ads.

### Which is updated more often, ARNBOOK or CATC e?

ARNBOOK ships an update every 3 weeks, and CATC e fortnightly. Most recently, ARNBOOK was updated on September 23, 2026 and CATC e on September 14, 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.*