# 이씨오 범용뷰어 vs 부커스

The clearest difference is review sentiment: 부커스 at 84% against 이씨오 범용뷰어's 0%. 부커스 also leads on update cadence (every 5 weeks vs every 4 months). 이씨오 범용뷰어's advantage is iOS requirement (13.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

이씨오 범용뷰어 ships an update every 4 months, 부커스 every 5 weeks. Both last shipped on November 7, 2026.

## The numbers

| Metric | 이씨오 범용뷰어 | 부커스 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[1.7 (6 ratings)](https://appshunter.io/ios/app/bookers/id1521764865/reviews)** |
| Number of ratings | — | **6** |
| Positive reviews | 0.0% of reviews | **84.5% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 5 weeks** |
| Monetization | Free | Free |
| Size | 54 MB | 61 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [(주)이씨오](https://appshunter.io/developer/371073988) | [Bookers Inc.](https://appshunter.io/developer/1521764867) |

## What reviewers say

### 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


### 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 이씨오 범용뷰어 free?

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

### Is 부커스 free?

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

### Do 이씨오 범용뷰어 or 부커스 have ads?

Neither 이씨오 범용뷰어 nor 부커스 shows ads.

### Which is updated more often, 이씨오 범용뷰어 or 부커스?

이씨오 범용뷰어 ships an update every 4 months, and 부커스 every 5 weeks. Most recently, 이씨오 범용뷰어 was updated on November 7, 2026 and 부커스 on November 7, 2026.

---

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