# CU vs RMUTT E

The clearest difference is in-app purchases: RMUTT E at none against CU's 17. RMUTT E also leads on update cadence (every 2 months vs every 6 months). CU's advantage is iOS requirement (11.0 vs 13.0). On price, ads and device support there is nothing between them.

Both are free to download. CU sells 17 one-off in-app purchases. RMUTT E asks for nothing beyond the download.

CU ships an update every 6 months, RMUTT E every 2 months. The most recent releases landed on September 16, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | CU | RMUTT E |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.8 (4 ratings)](https://appshunter.io/ios/app/cu-ebook-store/id537037074/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 93.3% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 6 months | **Every 2 months** |
| Monetization | Free with in-app purchases | — |
| Size | 119 MB | 7 MB |
| Requires iOS | **11.0** | 13.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 9+ |
| Developer | [MEB Corporation Public Company Limited](https://appshunter.io/developer/436964329) | [BOOKDOSE COMPANY LIMITED](https://appshunter.io/developer/459445000) |

## 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 |


### RMUTT E

[App page](https://appshunter.io/ios/app/rmutt-e-library/id1154371266)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is CU free?

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

### Is RMUTT E free?

RMUTT E is free to download, with no in-app purchases.

### Do CU or RMUTT E have ads?

Neither CU nor RMUTT E shows ads.

### Which is updated more often, CU or RMUTT E?

CU ships an update every 6 months, and RMUTT E every 2 months. Most recently, CU was updated on September 16, 2026 and RMUTT E on September 21, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*