# udn 讀書館 vs Smart Shapes

The clearest difference is ads: Smart Shapes at none against udn 讀書館's shown. Smart Shapes also leads on iOS requirement (8.0 vs 16.0). udn 讀書館's advantage is update cadence (every 6 weeks vs every 9 months). On price, in-app purchases and device support 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, Smart Shapes every 9 months. The most recent releases landed on October 15, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | udn 讀書館 | Smart Shapes |
| --- | --- | --- |
| 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 | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 6 weeks** | Every 9 months |
| Monetization | Ad-supported | — |
| Size | 63 MB | 43 MB |
| Requires iOS | 16.0 | **8.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 17+ | +4 |
| Developer | [udn.com](https://appshunter.io/developer/370132216) | [峰 高](https://appshunter.io/developer/1448594991) |

## 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


### Smart Shapes

[App page](https://appshunter.io/ios/app/smart-shapes/id1404725236)

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

**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 Smart Shapes free?

Smart Shapes is free to download, with no in-app purchases.

### Do udn 讀書館 or Smart Shapes have ads?

udn 讀書館 shows ads; Smart Shapes does not.

### Which is updated more often, udn 讀書館 or Smart Shapes?

udn 讀書館 ships an update every 6 weeks, and Smart Shapes every 9 months. Most recently, udn 讀書館 was updated on October 15, 2026 and Smart Shapes on October 13, 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.*