# 에피루스 전자책도서관 vs 이씨오 전자책뷰어

The clearest difference is iOS requirement: 이씨오 전자책뷰어 at 9.0 against 에피루스 전자책도서관's 15.6. 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.

에피루스 전자책도서관 ships an update every 7 months, 이씨오 전자책뷰어 every 5 months. The most recent releases landed on October 24, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | 에피루스 전자책도서관 | 이씨오 전자책뷰어 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (4 ratings)](https://appshunter.io/ios/app/1/id347246821/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 4.3% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 7 months | **Every 5 months** |
| Monetization | Free | — |
| Size | 52 MB | 56 MB |
| Requires iOS | 15.6 | **9.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [Blue Mountain Soft Inc.](https://appshunter.io/developer/347246824) | [(주)이씨오](https://appshunter.io/developer/371073988) |

## What reviewers say

### 에피루스 전자책도서관

[App page](https://appshunter.io/ios/app/1/id347246821)

Access and read a wide range of e-books from hundreds of public and university libraries. Borrow, return, and enjoy digital books conveniently on your iOS device.

**Highlights:** Unified e-book service, Access public and university libraries, Borrow and return e-books, Read anytime, anywhere, Supports XDF and Epyrus Xbook formats, Reflowable text for comfortable reading

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

**In-app purchases:** none


### 이씨오 전자책뷰어

[App page](https://appshunter.io/ios/app/id1260447323)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is 에피루스 전자책도서관 free?

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

### Is 이씨오 전자책뷰어 free?

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

### Do 에피루스 전자책도서관 or 이씨오 전자책뷰어 have ads?

Neither 에피루스 전자책도서관 nor 이씨오 전자책뷰어 shows ads.

### Which is updated more often, 에피루스 전자책도서관 or 이씨오 전자책뷰어?

에피루스 전자책도서관 ships an update every 7 months, and 이씨오 전자책뷰어 every 5 months. Most recently, 에피루스 전자책도서관 was updated on October 24, 2026 and 이씨오 전자책뷰어 on October 7, 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.*