# 이씨오 범용뷰어 3.0 vs Focus Reader

The clearest difference is in-app purchases: 이씨오 범용뷰어 3.0 at none against Focus Reader's 1. Focus Reader's advantage is update cadence (every 6 days vs every 2 months). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Focus Reader sells 1 one-off in-app purchase. 이씨오 범용뷰어 3.0 asks for nothing beyond the download.

이씨오 범용뷰어 3.0 ships an update every 2 months, Focus Reader every 6 days. The most recent releases landed on October 16, 2026 and October 13, 2026 respectively.

## The numbers

| Metric | 이씨오 범용뷰어 3.0 | Focus Reader |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 7.1% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 6 days** |
| Monetization | Free | — |
| Size | 98 MB | 58 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [(주)이씨오](https://appshunter.io/developer/371073988) | [Daejin hyun](https://appshunter.io/developer/1542734375) |

## What reviewers say

### 이씨오 범용뷰어 3.0

[App page](https://appshunter.io/ios/app/30/id6738065791)

This application allows users to read eBooks from ECO, Inc. Download and access your borrowed books anytime, anywhere. Essential for re-reading loaned digital content.

**Highlights:** Read eBooks, Download books, Access borrowed books, Anytime, anywhere access

**Features:** Vision Pro support

**In-app purchases:** none


### Focus Reader

[App page](https://appshunter.io/ios/app/focus-reader-pdf-and-epub/id6785369340)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Focus Reader Pro | $1.99 | one-time |


## Frequently asked questions

### Is 이씨오 범용뷰어 3.0 free?

이씨오 범용뷰어 3.0 is free to download, with no in-app purchases.

### Is Focus Reader free?

Focus Reader is free to download, with in-app purchases available.

### Do 이씨오 범용뷰어 3.0 or Focus Reader have ads?

Neither 이씨오 범용뷰어 3.0 nor Focus Reader shows ads.

### Which is updated more often, 이씨오 범용뷰어 3.0 or Focus Reader?

이씨오 범용뷰어 3.0 ships an update every 2 months, and Focus Reader every 6 days. Most recently, 이씨오 범용뷰어 3.0 was updated on October 16, 2026 and Focus Reader on October 13, 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.*