# 북큐브 전자도서관 vs 이씨오 범용뷰어 3.0

The clearest difference is review sentiment: 북큐브 전자도서관 at 63% against 이씨오 범용뷰어 3.0's 7%. 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.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 북큐브 전자도서관 | 이씨오 범용뷰어 3.0 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.5 (10 ratings)](https://appshunter.io/ios/app/id1007007455/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | **62.5% of reviews** | 7.1% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 138 MB | 98 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BOOKCUBE NETWORKS](https://appshunter.io/developer/576288019) | [(주)이씨오](https://appshunter.io/developer/371073988) |

## What reviewers say

### 북큐브 전자도서관

[App page](https://appshunter.io/ios/app/id1007007455)

Access a vast collection of e-books and audiobooks from over 500 partner libraries, including universities, public libraries, and corporate collections. Enjoy smart e-reading on your iPhone or iPad, with features for borrowing, reading, reserving, and returning books.

**Highlights:** Access to 500+ partner libraries, Borrow, read, reserve, and return e-books, Supports audiobooks, Smart e-reading on iOS devices, Free to use

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

**In-app purchases:** none


### 이씨오 범용뷰어 3.0

[App page](https://appshunter.io/ios/app/30/id6738065791)

This application allows users to read eBooks from ECO, Inc. Download and access your borrowed books anytime, anywhere. Essential for re-reading loaned digital content.

**Highlights:** Read eBooks, Download books, Access borrowed books, Anytime, anywhere access

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 북큐브 전자도서관 free?

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

### Is 이씨오 범용뷰어 3.0 free?

이씨오 범용뷰어 3.0 is free to download, with no in-app purchases.

### Do 북큐브 전자도서관 or 이씨오 범용뷰어 3.0 have ads?

Neither 북큐브 전자도서관 nor 이씨오 범용뷰어 3.0 shows ads.

### Which is updated more often, 북큐브 전자도서관 or 이씨오 범용뷰어 3.0?

북큐브 전자도서관 ships an update every 2 months, and 이씨오 범용뷰어 3.0 every 2 months. Most recently, 북큐브 전자도서관 was updated on October 24, 2026 and 이씨오 범용뷰어 3.0 on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*