# udn 讀書館 vs 常春藤VIP行動書櫃

The clearest difference is review sentiment: udn 讀書館 at 50% against 常春藤VIP行動書櫃's 9%. udn 讀書館 also leads on monetization model (ad-supported vs free with in-app purchases). 常春藤VIP行動書櫃's advantage is iOS requirement (12.0 vs 16.0). On price, update cadence, ads 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 ships an update every 6 weeks, 常春藤VIP行動書櫃 every 2 months. The most recent releases landed on September 19, 2026 and June 1, 2026 respectively.

## The numbers

| Metric | udn 讀書館 | 常春藤VIP行動書櫃 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (8 ratings)](https://appshunter.io/ios/app/udn/id1342153816/reviews)** | — |
| Number of ratings | **8** | — |
| Positive reviews | **50.0% of reviews** | 9.1% of reviews |
| In-app purchases | No | No |
| Ads | Yes | Yes |
| Update frequency | **Every 6 weeks** | Every 2 months |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Size | 63 MB | 37 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [udn.com](https://appshunter.io/developer/370132216) | [Soyong Corporation](https://appshunter.io/developer/339142397) |

## What reviewers say

### 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


### 常春藤VIP行動書櫃

[App page](https://appshunter.io/ios/app/vip/id1537067459)

Enhance your English learning with this app, offering comprehensive listening, reading, and speaking exercises. It features a spaced repetition system for vocabulary memorization and allows offline access to downloaded books. Improve your pronunciation and track your progress with advanced learning tools.

**Highlights:** Offline learning mode, Reading and listening comprehension exercises, Pronunciation practice with voice recognition, Spaced repetition vocabulary memorization, Adjustable playback speed, Word level and frequency indicators, Bookmark important content

**In-app purchases:** none


## Frequently asked questions

### Is udn 讀書館 free?

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

### Is 常春藤VIP行動書櫃 free?

常春藤VIP行動書櫃 is free to download, with no in-app purchases.

### Do udn 讀書館 or 常春藤VIP行動書櫃 have ads?

Both udn 讀書館 and 常春藤VIP行動書櫃 show ads.

### Which is updated more often, udn 讀書館 or 常春藤VIP行動書櫃?

udn 讀書館 ships an update every 6 weeks, and 常春藤VIP行動書櫃 every 2 months. Most recently, udn 讀書館 was updated on September 19, 2026 and 常春藤VIP行動書櫃 on June 1, 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.*