# 미스터블루 vs 교보eBook

The clearest difference is rating: 교보eBook at 4.3 against 미스터블루's 2.0. 교보eBook also leads on ads (none vs shown) and ratings volume (297 vs 22). 미스터블루's advantage is review sentiment (62% vs 21%) and update cadence (every 5 days vs every 3 weeks). On price, in-app purchases, monetization model and device support there is nothing between them.

Both are free to download. 미스터블루 sells 14 one-off in-app purchases and 교보eBook sells 6 in-app purchases, starting at $8.99 per month. Whichever you choose, the download price is not the number that matters.

교보eBook holds the better App Store score, 4.3 against 2.0. That said, the two scores are not equally well evidenced: 교보eBook has 297 ratings behind it against 22, so its average is the more settled of the two. Written reviews complicate that: 62% of 미스터블루's written reviews are positive against 21% of 교보eBook's, so the app with the better star average is not the one people write more warmly about.

미스터블루 ships an update every 5 days, 교보eBook every 3 weeks. Both last shipped on October 17, 2026.

## The numbers

| Metric | 미스터블루 | 교보eBook |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [2.0 (22 ratings)](https://appshunter.io/ios/app/id381253120/reviews) | **[4.3 (297 ratings)](https://appshunter.io/ios/app/ebook-e/id445290463/reviews)** |
| Number of ratings | 22 | **297** |
| Positive reviews | **62.2% of reviews** | 21.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Monetization | Free with in-app purchases | Free with in-app purchases |
| Best chart rank | — | **#187** |
| Size | 104 MB | 456 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 4+ |
| Developer | [Mr.Blue Corp](https://appshunter.io/developer/381253123) | [KYOBO BOOK CENTRE CO,.LTD](https://appshunter.io/developer/395182148) |

## What reviewers say

### 미스터블루

[App page](https://appshunter.io/ios/app/id381253120)

Discover a vast collection of webtoons and novels, including exclusive original content. Enjoy daily free coupons, special events with discounted popular titles, and real-time rankings to find trending works. Personalize your feed by selecting your favorite genres.

**Highlights:** Daily free coupons for webtoons and novels, Exclusive original BL, romance, and martial arts webtoons, Benefit events for discounted popular titles, Real-time rankings for trending works, Interest genre selection for personalized feed

**In-app purchases (14)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 1,000원 | $0.99 | one-time |
| 3,000 앱머니 | $1.99 | one-time |
| 3,000원 | $2.99 | one-time |
| 5,000 앱머니 | $3.99 | one-time |
| 5,000원 | $4.99 | one-time |
| 10,000 앱머니 | $6.99 | one-time |
| 10000 앱머니 | $7.99 | one-time |
| 10,000원 | $9.99 | one-time |
| 정액제 만화 1개월권 | $14.99 | one-time |
| 만화 정액권 1개월 | $18.99 | one-time |
| 25000 앱머니 | $19.99 | one-time |
| 30,000 앱머니 | $22.99 | one-time |
| 50,000 앱머니 | $39.99 | one-time |
| 100,000 앱머니 | $69.99 | one-time |


### 교보eBook

[App page](https://appshunter.io/ios/app/ebook-e/id445290463)

**Currently charting:** #187 Top Grossing · Book (US App Store)

This app offers a streamlined eBook reading experience with enhanced customization and management features. Access all your purchased and uploaded books in one place, enjoy free books without login, and sync your reading progress across multiple devices. Share favorite passages and convert text to speech for an enriched reading journey.

**Highlights:** Unified book management, Login-free access to free books, Cross-device reading synchronization (up to 5 devices), Highlighting, notes, and bookshelf synchronization, Social sharing of book passages, Text-to-speech functionality, Customizable reading environment, ePub3 standard support

**Features:** macOS Compatibility

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| sam무제한 (매월) | $8.99 | per month |
| sam3 (매월) | $8.99 | per month |
| 5,000캐시 | $3.99 | one-time |
| 10,000캐시 | $6.99 | one-time |
| 30,000캐시 | $22.99 | one-time |
| 50,000캐시 | $39.99 | one-time |

**What reviewers like**

- 🚀 Fast and efficient app
- 📚 Vast selection of ebooks
- 📝 Useful note-taking and highlighting features
- 🌍 Accessible from anywhere with ebook purchases
- 🔍 Intuitive search and browsing functionality

**What reviewers complain about**

- 🐛 Frequent app crashes and stability issues
- ⏱️ Slow page loading and navigation
- 📱 Suboptimal user interface and experience
- 🔋 High battery consumption
- 🔒 Lack of seamless cross-device synchronization

**Reported bugs**

- Inconsistent page navigation and jumping between pages
- Unreliable login and account management
- Compatibility issues with newer devices and operating systems
- Unexpected app crashes and freezes during use
- Delayed or failed ebook downloads

**Requested features**

- Implement Apple Pencil support for better note-taking
- Add more customization options for fonts, margins, and layout
- Improve cross-device synchronization of bookmarks, highlights, and notes
- Introduce a night mode or dark theme for comfortable reading
- Optimize app performance and reduce loading times


## Frequently asked questions

### Is 미스터블루 free?

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

### Is 교보eBook free?

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

### Which has better reviews, 미스터블루 or 교보eBook?

교보eBook is rated higher. 미스터블루 averages 2.0 out of 5 from 22 ratings, while 교보eBook averages 4.3 from 297 ratings.

### Do 미스터블루 or 교보eBook have ads?

미스터블루 shows ads; 교보eBook does not.

### Which is updated more often, 미스터블루 or 교보eBook?

미스터블루 ships an update every 5 days, and 교보eBook every 3 weeks. Most recently, 미스터블루 was updated on October 17, 2026 and 교보eBook on October 17, 2026.

---

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