# 웅진OPMS 전자책뷰어 vs 이씨오 범용뷰어

The clearest difference is update cadence: 웅진OPMS 전자책뷰어 at every 2 months against 이씨오 범용뷰어's every 4 months. 웅진OPMS 전자책뷰어 also leads on iOS requirement (9.0 vs 13.0). On price, review sentiment, 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.

웅진OPMS 전자책뷰어 ships an update every 2 months, 이씨오 범용뷰어 every 4 months. Both last shipped on October 8, 2026.

## The numbers

| Metric | 웅진OPMS 전자책뷰어 | 이씨오 범용뷰어 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[1.0 (1 ratings)](https://appshunter.io/ios/app/opms/id1201769721/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 0.0% of reviews | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Free | Free |
| Size | 61 MB | 54 MB |
| Requires iOS | **9.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [OPMS Co., LTD.](https://appshunter.io/developer/408810462) | [(주)이씨오](https://appshunter.io/developer/371073988) |

## 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


### 이씨오 범용뷰어

[App page](https://appshunter.io/ios/app/id1495570610)

This application allows users to read electronic books (eBooks) managed by (주)이씨오. Users can download and access their eBooks from their virtual bookshelf anytime, anywhere. It's also used to re-read borrowed books.

**Highlights:** Read eBooks, Download eBooks, Access virtual bookshelf, Re-read borrowed books

**Features:** macOS Compatibility, 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 이씨오 범용뷰어 free?

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

### Do 웅진OPMS 전자책뷰어 or 이씨오 범용뷰어 have ads?

Neither 웅진OPMS 전자책뷰어 nor 이씨오 범용뷰어 shows ads.

### Which is updated more often, 웅진OPMS 전자책뷰어 or 이씨오 범용뷰어?

웅진OPMS 전자책뷰어 ships an update every 2 months, and 이씨오 범용뷰어 every 4 months. Most recently, 웅진OPMS 전자책뷰어 was updated on October 8, 2026 and 이씨오 범용뷰어 on October 8, 2026.

---

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