# 북레일 vs KNU 도서관

The clearest difference is update cadence: 북레일 at every 5 days against KNU 도서관's every 4 months. 북레일 also leads on iOS requirement (11.0 vs 14.4). On price, review sentiment, 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.

북레일 ships an update every 5 days, KNU 도서관 every 4 months. Both last shipped on October 15, 2026.

## The numbers

| Metric | 북레일 | KNU 도서관 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.0 (1 ratings)](https://appshunter.io/ios/app/bookrail/id729245180/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 6.1% of reviews | **7.7% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 4 months |
| Monetization | Free | Free |
| Size | 28 MB | 6 MB |
| Requires iOS | **11.0** | 14.4 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bookrail.,Ltd](https://appshunter.io/developer/1127153998) | [INEK corp.](https://appshunter.io/developer/494214129) |

## What reviewers say

### 북레일

[App page](https://appshunter.io/ios/app/bookrail/id729245180)

Access a dedicated mobile app for institutional members to conveniently use the BookRail e-book service. Search, borrow, read, and return books, along with personalized features like My BookRail, anytime, anywhere.

**Highlights:** Book search, Book borrowing, E-book reading, Book returns, Personalized My BookRail, Institutional member access

**Features:** macOS Compatibility

**In-app purchases:** none


### KNU 도서관

[App page](https://appshunter.io/ios/app/knu/id1154430744)

Access library information, manage your loans, and view personal notices. Reserve seats and facilities, request new materials, and utilize your mobile student ID. Explore floor plans and access domestic e-books.

**Highlights:** Library information (hours, floor plans), Loan management and personal notices, Seat and facility reservations, Material purchase requests, Mobile student ID integration, Domestic e-book access

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 북레일 free?

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

### Is KNU 도서관 free?

KNU 도서관 is free to download, with no in-app purchases.

### Do 북레일 or KNU 도서관 have ads?

Neither 북레일 nor KNU 도서관 shows ads.

### Which is updated more often, 북레일 or KNU 도서관?

북레일 ships an update every 5 days, and KNU 도서관 every 4 months. Most recently, 북레일 was updated on October 15, 2026 and KNU 도서관 on October 15, 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.*