# Readmoo 分享書 vs udn 讀書館

The clearest difference is rating: udn 讀書館 at 2.5 against Readmoo 分享書's 1.0. udn 讀書館 also leads on ratings volume (8 vs 1). Readmoo 分享書's advantage is ads (none vs shown) and iOS requirement (12.0 vs 16.0). On price, review sentiment, update cadence and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

udn 讀書館 holds the better App Store score, 2.5 against 1.0. That said, the two scores are not equally well evidenced: udn 讀書館 has 8 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 53% of Readmoo 分享書's written reviews are positive against 50% of udn 讀書館's, so the app with the better star average is not the one people write more warmly about.

Readmoo 分享書 ships an update every 3 months, udn 讀書館 every 6 weeks. The most recent releases landed on August 12, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Readmoo 分享書 | udn 讀書館 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/readmoo/id1049169637/reviews) | **[2.5 (8 ratings)](https://appshunter.io/ios/app/udn/id1342153816/reviews)** |
| Number of ratings | 1 | **8** |
| Positive reviews | **53.3% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 6 weeks** |
| Monetization | Ad-supported | Ad-supported |
| Size | 31 MB | 63 MB |
| Requires iOS | **12.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 12+ | 17+ |
| Developer | [eCrowdmedia](https://appshunter.io/developer/942389747) | [udn.com](https://appshunter.io/developer/370132216) |

## What reviewers say

### Readmoo 分享書

[App page](https://appshunter.io/ios/app/readmoo/id1049169637)

Organize your personal library, track reading progress, and discover new books through community reviews and bestseller lists. Easily add books by scanning barcodes or browsing new releases and popular titles.

**Highlights:** Scan barcodes to add books, Manage reading progress, View bestseller charts, Discover new releases, Read community reviews

**In-app purchases:** none


### udn 讀書館

[App page](https://appshunter.io/ios/app/udn/id1342153816)

Access e-books, magazines, and newspapers from multiple libraries in one app. Enjoy a seamless reading experience with offline capabilities and customizable settings. Borrow and reserve digital content for free.

**Highlights:** Integrates multiple library lending services, Free mobile borrowing of e-books, magazines, newspapers, Offline reading of downloaded content, Supports PDF and EPUB formats, Customizable reading settings (brightness, text size, night mode), Borrow and reserve books with automatic returns

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Readmoo 分享書 free?

Readmoo 分享書 is free to download, with no in-app purchases.

### Is udn 讀書館 free?

udn 讀書館 is free to download, with no in-app purchases.

### Which has better reviews, Readmoo 分享書 or udn 讀書館?

udn 讀書館 is rated higher. Readmoo 分享書 averages 1.0 out of 5 from 1 ratings, while udn 讀書館 averages 2.5 from 8 ratings.

### Do Readmoo 分享書 or udn 讀書館 have ads?

udn 讀書館 shows ads; Readmoo 分享書 does not.

### Which is updated more often, Readmoo 分享書 or udn 讀書館?

Readmoo 分享書 ships an update every 3 months, and udn 讀書館 every 6 weeks. Most recently, Readmoo 分享書 was updated on August 12, 2026 and udn 讀書館 on September 19, 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.*