# 웅진OPMS 전자책뷰어 vs 부커스

The clearest difference is review sentiment: 부커스 at 84% against 웅진OPMS 전자책뷰어's 0%. 부커스 also leads on rating (1.7 vs 1.0) and ratings volume (6 vs 1). 웅진OPMS 전자책뷰어's advantage is iOS requirement (9.0 vs 12.0). 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.

부커스 holds the better App Store score, 1.7 against 1.0. That said, the two scores are not equally well evidenced: 부커스 has 6 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 0% of 웅진OPMS 전자책뷰어's written reviews are positive against 84% of 부커스's.

웅진OPMS 전자책뷰어 ships an update every 2 months, 부커스 every 5 weeks. The most recent releases landed on September 22, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | 웅진OPMS 전자책뷰어 | 부커스 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.0 (1 ratings)](https://appshunter.io/ios/app/opms/id1201769721/reviews) | **[1.7 (6 ratings)](https://appshunter.io/ios/app/bookers/id1521764865/reviews)** |
| Number of ratings | 1 | **6** |
| Positive reviews | 0.0% of reviews | **84.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 61 MB | 147 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [OPMS Co., LTD.](https://appshunter.io/developer/408810462) | [Bookers Inc.](https://appshunter.io/developer/1521764867) |

## What reviewers say

### 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


### 부커스

[App page](https://appshunter.io/ios/app/bookers/id1521764865)

This platform offers a subscription-based service for electronic books and audiobooks, catering to organizations like libraries, schools, and corporations. It provides access to a vast library of content with daily updates and offers customized service models for institutions.

**Highlights:** Subscription-based e-book and audiobook access, Vast library with daily content updates, Customized service models for institutions, E-book production and platform services, Reading discussion and award programs

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is 웅진OPMS 전자책뷰어 free?

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

### Is 부커스 free?

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

### Which has better reviews, 웅진OPMS 전자책뷰어 or 부커스?

부커스 is rated higher. 웅진OPMS 전자책뷰어 averages 1.0 out of 5 from 1 ratings, while 부커스 averages 1.7 from 6 ratings.

### Do 웅진OPMS 전자책뷰어 or 부커스 have ads?

Neither 웅진OPMS 전자책뷰어 nor 부커스 shows ads.

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

웅진OPMS 전자책뷰어 ships an update every 2 months, and 부커스 every 5 weeks. Most recently, 웅진OPMS 전자책뷰어 was updated on September 22, 2026 and 부커스 on October 14, 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.*