# 예스24 eBook & 크레마클럽 vs 고종훈 OX 문제집(9급 공무원 대비)

The clearest difference is review sentiment: 고종훈 OX 문제집(9급 공무원 대비) at 100% against 예스24 eBook & 크레마클럽's 44%. 고종훈 OX 문제집(9급 공무원 대비) also leads on rating (5.0 vs 4.5) and monetization model (free vs free with in-app purchases). 예스24 eBook & 크레마클럽's advantage is ratings volume (301 vs 1) and update cadence (weekly vs every 6 weeks). On price, ads, in-app purchases and device support there is nothing between them.

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

고종훈 OX 문제집(9급 공무원 대비) holds the better App Store score, 5.0 against 4.5. That said, the two scores are not equally well evidenced: 예스24 eBook & 크레마클럽 has 301 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 44% of 예스24 eBook & 크레마클럽's written reviews are positive against 100% of 고종훈 OX 문제집(9급 공무원 대비)'s.

예스24 eBook & 크레마클럽 ships an update weekly, 고종훈 OX 문제집(9급 공무원 대비) every 6 weeks. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | 예스24 eBook & 크레마클럽 | 고종훈 OX 문제집(9급 공무원 대비) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.5 (301 ratings)](https://appshunter.io/ios/app/24-ebook-and/id1009076561/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ox-9/id6470810098/reviews)** |
| Number of ratings | **301** | 1 |
| Positive reviews | 43.6% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 6 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 377 MB | 27 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | +9 | 4+ |
| Developer | [예스24](https://appshunter.io/developer/360051539) | [NewLearn Soft](https://appshunter.io/developer/1815216881) |

## What reviewers say

### 예스24 eBook & 크레마클럽

[App page](https://appshunter.io/ios/app/24-ebook-and/id1009076561)

This app offers a comprehensive reading experience for eBooks purchased from a major online bookstore. Enjoy features like intuitive library management, personalized reading environments, and text-to-speech functionality. It also includes a subscription service for unlimited reading of new and best-selling titles.

**Highlights:** Intuitive book management, Personalized reading environment, Text-to-Speech (TTS) reading, Automatic scrolling, Privacy controls, Reading life management tools, PDF annotation

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 👍 Clean and intuitive interface design
- 📚 Convenient access to Korean books overseas
- 💰 Good value for money with subscription service
- 🎧 Audio book functionality with speed/pitch control
- ✏️ Highlight and memo features available

**What reviewers complain about**

- 🐛 Frequent app crashes and freezes
- ⚠️ Poor page synchronization across devices
- 🔒 Screenshot/capture restrictions too strict
- ⏱️ Slow app performance and loading times
- 📵 Touch responsiveness issues on iPad

**Reported bugs**

- Page turning and scrolling unresponsive
- Crema Club tab showing blank pages
- Highlighting function causing screen freezing
- Audio playback not working across devices
- Page synchronization failing between devices

**Requested features**

- MacBook/desktop version support
- Better cross-device page synchronization
- Auto-save functionality for notes and memos
- Partial eraser tool for annotations
- Direct note-taking on book pages (sticky notes)


### 고종훈 OX 문제집(9급 공무원 대비)

[App page](https://appshunter.io/ios/app/ox-9/id6470810098)

Prepare for civil service exams with this app. It offers an error correction notebook to save and review incorrect answers, and automatically scores chapters to identify weak areas. The clean interface is designed for comfort during long study sessions.

**Highlights:** Error correction notebook, Review saved incorrect answers, Chapter completion scoring, Identify weak study areas, Comfortable screen layout, Vibration for incorrect answers

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

**In-app purchases:** none

**What reviewers like**

- 👍 Excellent for utilizing spare time
- 👍 Convenient for studying on the go
- 👍 Effective for reviewing and reinforcing knowledge
- 👍 High-quality questions and content
- 👍 User-friendly interface and design

**What reviewers complain about**

- 🐛 Problem numbers sometimes start from 2
- 🐛 Scrolling needed for long explanations
- 🐛 Some users wish for faster app loading
- 🐛 Manually favoriting questions is tedious
- 🐛 Lack of explanations for some questions (mentioned by one user)

**Reported bugs**

- Typo: OECD written as trueECD in Part8-Chapter2-Quiz61 and Part8-Chapter3-Quiz18

**Requested features**

- Ability to move between questions freely (forward/backward)
- Option to collect wrong answers in one go for O답노트
- Ability to upload photos
- Faster app loading speed
- Improvement in favoriting/bookmarking questions


## Frequently asked questions

### Is 예스24 eBook & 크레마클럽 free?

예스24 eBook & 크레마클럽 is free to download, with no in-app purchases.

### Is 고종훈 OX 문제집(9급 공무원 대비) free?

고종훈 OX 문제집(9급 공무원 대비) is free to download, with no in-app purchases.

### Which has better reviews, 예스24 eBook & 크레마클럽 or 고종훈 OX 문제집(9급 공무원 대비)?

고종훈 OX 문제집(9급 공무원 대비) is rated higher. 예스24 eBook & 크레마클럽 averages 4.5 out of 5 from 301 ratings, while 고종훈 OX 문제집(9급 공무원 대비) averages 5.0 from 1 ratings.

### Do 예스24 eBook & 크레마클럽 or 고종훈 OX 문제집(9급 공무원 대비) have ads?

Neither 예스24 eBook & 크레마클럽 nor 고종훈 OX 문제집(9급 공무원 대비) shows ads.

### Which is updated more often, 예스24 eBook & 크레마클럽 or 고종훈 OX 문제집(9급 공무원 대비)?

예스24 eBook & 크레마클럽 ships an update weekly, and 고종훈 OX 문제집(9급 공무원 대비) every 6 weeks. Most recently, 예스24 eBook & 크레마클럽 was updated on November 1, 2026 and 고종훈 OX 문제집(9급 공무원 대비) on November 3, 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.*