# udn 讀書館 vs Folio 以書會友

The clearest difference is rating: Folio 以書會友 at 5.0 against udn 讀書館's 2.5. Folio 以書會友 also leads on ads (none vs shown) and update cadence (weekly vs every 6 weeks). On price, ratings volume, 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.

Folio 以書會友 holds the better App Store score, 5.0 against 2.5. Both are backed by a comparable volume of ratings — 8 and 4 respectively.

udn 讀書館 ships an update every 6 weeks, Folio 以書會友 weekly. The most recent releases landed on October 15, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | udn 讀書館 | Folio 以書會友 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.5 (8 ratings)](https://appshunter.io/ios/app/udn/id1342153816/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/folio/id6771667110/reviews)** |
| Number of ratings | **8** | 4 |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 6 weeks | **Weekly** |
| Monetization | Ad-supported | **Free** |
| Size | 63 MB | 216 MB |
| Requires iOS | 16.0 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [udn.com](https://appshunter.io/developer/370132216) | [Yu-Ting Liao](https://appshunter.io/developer/1818270595) |

## 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


### Folio 以書會友

[App page](https://appshunter.io/ios/app/folio/id6771667110)

This app facilitates deep connections through shared reading experiences. Users can invite others to read a book together, fostering meaningful interactions beyond superficial matching. It also serves as a personal digital bookshelf for tracking reading progress and thoughts.

**Highlights:** Shared reading experiences, Three user intentions for interaction, Four-stage co-reading process, Personal digital bookshelf, Progress-based chat unlocking, Shareable reading summaries

**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 Folio 以書會友 free?

Folio 以書會友 is free to download, with no in-app purchases.

### Which has better reviews, udn 讀書館 or Folio 以書會友?

Folio 以書會友 is rated higher. udn 讀書館 averages 2.5 out of 5 from 8 ratings, while Folio 以書會友 averages 5.0 from 4 ratings.

### Do udn 讀書館 or Folio 以書會友 have ads?

udn 讀書館 shows ads; Folio 以書會友 does not.

### Which is updated more often, udn 讀書館 or Folio 以書會友?

udn 讀書館 ships an update every 6 weeks, and Folio 以書會友 weekly. Most recently, udn 讀書館 was updated on October 15, 2026 and Folio 以書會友 on October 9, 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.*