# 북큐브 전자도서관 vs 웅진OPMS 전자책뷰어

The clearest difference is review sentiment: 북큐브 전자도서관 at 63% against 웅진OPMS 전자책뷰어's 0%. 북큐브 전자도서관 also leads on rating (1.5 vs 1.0) and ratings volume (10 vs 1). 웅진OPMS 전자책뷰어's advantage is iOS requirement (9.0 vs 15.0). 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.

북큐브 전자도서관 holds the better App Store score, 1.5 against 1.0. That said, the two scores are not equally well evidenced: 북큐브 전자도서관 has 10 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 63% of 북큐브 전자도서관's written reviews are positive against 0% of 웅진OPMS 전자책뷰어's.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 29, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | 북큐브 전자도서관 | 웅진OPMS 전자책뷰어 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.5 (10 ratings)](https://appshunter.io/ios/app/id1007007455/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/opms/id1201769721/reviews) |
| Number of ratings | **10** | 1 |
| Positive reviews | **62.5% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | Free | Free |
| Size | 138 MB | 61 MB |
| Requires iOS | 15.0 | **9.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [BOOKCUBE NETWORKS](https://appshunter.io/developer/576288019) | [OPMS Co., LTD.](https://appshunter.io/developer/408810462) |

## 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


### 웅진OPMS 전자책뷰어

[App page](https://appshunter.io/ios/app/opms/id1201769721)

Access and read a wide selection of e-books from the OPMS mall directly on your device. Organize your library, search content quickly, and customize your reading experience with bookmarks, highlights, and adjustable text settings for optimal readability.

**Highlights:** Organized digital library, Fast text search, Bookmark and highlight functionality, Customizable background and font size, Optimized readability across devices

**Features:** macOS Compatibility, 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 웅진OPMS 전자책뷰어 free?

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

### Which has better reviews, 북큐브 전자도서관 or 웅진OPMS 전자책뷰어?

북큐브 전자도서관 is rated higher. 북큐브 전자도서관 averages 1.5 out of 5 from 10 ratings, while 웅진OPMS 전자책뷰어 averages 1.0 from 1 ratings.

### Do 북큐브 전자도서관 or 웅진OPMS 전자책뷰어 have ads?

Neither 북큐브 전자도서관 nor 웅진OPMS 전자책뷰어 shows ads.

### Which is updated more often, 북큐브 전자도서관 or 웅진OPMS 전자책뷰어?

북큐브 전자도서관 ships an update every 2 months, and 웅진OPMS 전자책뷰어 every 2 months. Most recently, 북큐브 전자도서관 was updated on September 29, 2026 and 웅진OPMS 전자책뷰어 on September 22, 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.*