# CU vs ARNBOOK

The clearest difference is review sentiment: CU at 93% against ARNBOOK's 42%. CU also leads on rating (2.8 vs 1.2) and iOS requirement (11.0 vs 15.5). ARNBOOK's advantage is update cadence (every 3 weeks vs every 6 months). On price, ratings volume, ads and in-app purchases there is nothing between them.

Both are free to download. CU sells 17 one-off in-app purchases and ARNBOOK sells 17 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

CU holds the better App Store score, 2.8 against 1.2. Both are backed by a comparable volume of ratings — 4 and 5 respectively. Written reviews point the same way: 93% of CU's written reviews are positive against 42% of ARNBOOK's.

CU ships an update every 6 months, ARNBOOK every 3 weeks. The most recent releases landed on October 3, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | CU | ARNBOOK |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.8 (4 ratings)](https://appshunter.io/ios/app/cu-ebook-store/id537037074/reviews)** | [1.2 (5 ratings)](https://appshunter.io/ios/app/arnbook/id1543409494/reviews) |
| Number of ratings | 4 | **5** |
| Positive reviews | **93.3% of reviews** | 42.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 3 weeks** |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Size | 119 MB | 118 MB |
| Requires iOS | **11.0** | 15.5 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [MEB Corporation Public Company Limited](https://appshunter.io/developer/436964329) | [ARN BOOK COMPANY LIMITED](https://appshunter.io/developer/1543409856) |

## What reviewers say

### CU

[App page](https://appshunter.io/ios/app/cu-ebook-store/id537037074)

Access a digital library of academic books and magazines from leading publishers. Read, annotate, and manage your downloaded content with a user-friendly reader designed for comfort and convenience.

**Highlights:** Browse and search academic books, Download and read e-books, Adjustable text size and fonts, Night mode and brightness control, Take notes and draw on pages, Bookmark and resume reading, Review and rate books

**Features:** Vision Pro support

**In-app purchases (17)**

| Purchase | Price | Billing |
| --- | --- | --- |
| อธิษฐาน - ATiTarn | $1.99 | one-time |
| หนังสือราคา 1.99 USD | $1.99 | one-time |
| เข็มทิศชีวิต | $2.99 | one-time |
| เข็มทิศชีวิต II | $2.99 | one-time |
| เข็มทิศจิตใต้สำนึก | $2.99 | one-time |
| หนังสือราคา 2.99 USD | $2.99 | one-time |
| หนังสือราคา 3.99 USD | $3.99 | one-time |
| 100 WAYS TO SAY IN ENGLISH | $4.99 | one-time |
| หนังสือราคา 4.99 USD | $4.99 | one-time |
| หนังสือราคา 5.99 USD | $5.99 | one-time |
| หนังสือราคา 6.99 USD | $6.99 | one-time |
| หนังสือราคา 7.99 USD | $7.99 | one-time |
| หนังสือราคา 8.99 USD | $8.99 | one-time |
| หนังสือราคา 9.99 USD | $9.99 | one-time |
| หนังสือราคา 10.99 USD | $10.99 | one-time |
| หนังสือราคา 11.99 USD | $11.99 | one-time |
| หนังสือราคา 12.99 USD | $12.99 | one-time |


### 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 |


## Frequently asked questions

### Is CU free?

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

### Is ARNBOOK free?

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

### Which has better reviews, CU or ARNBOOK?

CU is rated higher. CU averages 2.8 out of 5 from 4 ratings, while ARNBOOK averages 1.2 from 5 ratings.

### Do CU or ARNBOOK have ads?

Neither CU nor ARNBOOK shows ads.

### Which is updated more often, CU or ARNBOOK?

CU ships an update every 6 months, and ARNBOOK every 3 weeks. Most recently, CU was updated on October 3, 2026 and ARNBOOK on October 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.*