# 북큐브 vs 웅진OPMS 전자책뷰어

The clearest difference is review sentiment: 북큐브 at 58% against 웅진OPMS 전자책뷰어's 0%. 북큐브 also leads on rating (2.5 vs 1.0) and update cadence (every 3 weeks vs every 2 months). 웅진OPMS 전자책뷰어's advantage is iOS requirement (9.0 vs 15.0). On price, ads, 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.

북큐브 holds the better App Store score, 2.5 against 1.0. That said, the two scores are not equally well evidenced: 북큐브 has 11 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 58% of 북큐브's written reviews are positive against 0% of 웅진OPMS 전자책뷰어's.

북큐브 ships an update every 3 weeks, 웅진OPMS 전자책뷰어 every 2 months. The most recent releases landed on October 20, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | 북큐브 | 웅진OPMS 전자책뷰어 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.5 (11 ratings)](https://appshunter.io/ios/app/id576288015/reviews)** | [1.0 (1 ratings)](https://appshunter.io/ios/app/opms/id1201769721/reviews) |
| Number of ratings | **11** | 1 |
| Positive reviews | **58.5% of reviews** | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | — | Free |
| Size | 141 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

[App page](https://appshunter.io/ios/app/id576288015)

**Features:** 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 free?

북큐브 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 or 웅진OPMS 전자책뷰어?

북큐브 is rated higher. 북큐브 averages 2.5 out of 5 from 11 ratings, while 웅진OPMS 전자책뷰어 averages 1.0 from 1 ratings.

### Do 북큐브 or 웅진OPMS 전자책뷰어 have ads?

Neither 북큐브 nor 웅진OPMS 전자책뷰어 shows ads.

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

북큐브 ships an update every 3 weeks, and 웅진OPMS 전자책뷰어 every 2 months. Most recently, 북큐브 was updated on October 20, 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.*