이씨오 범용뷰어 3.0 vs Focus Reader
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
이씨오 범용뷰어 3.0
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.
- Read eBooks
- Download books
- Access borrowed books
- Anytime, anywhere access
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(주) 이씨오에서 운영중인 전자책(eBook)을 읽기 위한 어플리케이션입니다. 1). (주) 이씨오에서 운영중인 전자책(eBook)을 읽기 위한 어플리케이션입니다. 2). 앱을 통해 전자책을 언제 어디서나 다운로드하셔서 보실 수 있습니다. 3). 대출하신 도서를 다시 읽고자 하실때에는 앱을 통해서 읽기를 하셔야 합니다.
Focus Reader
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Lose your place in long documents? Focus Reader reflows PDF and EPUB books to fit your screen and keeps only the part you're reading in sharp focus. Open the books you already have and adjust text size, font, line spacing, and column width to suit your eyes. No more fighting cramped PDF columns or tiny print. Features - PDF & EPUB reflow: the current page or chapter is re-typeset into one comfortable column. - Focus band: a clear reading band with the rest of the page dimmed, so your eyes stay on the line. Adjust the band's height, dim level, and position. - Typography: serif and sans-serif fonts for Latin and Korean, with size, line height, and UI scale controls. - Reading themes: paper, sepia, green, solar, night, and dim. - Dictionary lookup: long-press a word for an offline definition in the bundled English-Korean and Korean dictionaries. - Library: saved books with reading progress. - Korean and English interface. Free and Pro The core reading features and dictionary lookup are free. Focus band fine-tuning, all reading themes, and column width are unlocked with Focus Reader Pro — a one-time purchase, not a subscription. The Korean App Store price is ₩4,000; prices in other regions are set by Apple. Supported formats: PDF, EPUB
Screenshots
Verdict
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.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
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.
| Parameter | 이씨오 범용뷰어 3.0 | Focus Reader |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 7.1% of reviews | — |
| Update frequency | Every 2 months | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | — |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 15.0 |
| Further details — not scored | ||
| Size | 98 MB | 58 MB |
| Age rating | 4+ | 4+ |
| Developer | (주)이씨오 | Daejin hyun |
In-app purchases
이씨오 범용뷰어 3.0
No in-app purchases
Focus Reader
- Focus Reader Pro$1.99
