# ReadingTreee vs 고종훈 OX 문제집(9급 공무원 대비)

The clearest difference is review sentiment: 고종훈 OX 문제집(9급 공무원 대비) at 100% against ReadingTreee's 63%. 고종훈 OX 문제집(9급 공무원 대비) also leads on in-app purchases (none vs 2) and ads (none vs shown). ReadingTreee's advantage is ratings volume (39 vs 1). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. ReadingTreee sells 2 one-off in-app purchases. 고종훈 OX 문제집(9급 공무원 대비) asks for nothing beyond the download.

고종훈 OX 문제집(9급 공무원 대비) holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: ReadingTreee has 39 ratings behind it against 1, so its average is the more settled of the two. Written reviews point the same way: 63% of ReadingTreee's written reviews are positive against 100% of 고종훈 OX 문제집(9급 공무원 대비)'s.

ReadingTreee ships an update monthly, 고종훈 OX 문제집(9급 공무원 대비) every 6 weeks. The most recent releases landed on September 28, 2026 and September 11, 2026 respectively.

## The numbers

| Metric | ReadingTreee | 고종훈 OX 문제집(9급 공무원 대비) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.6 (39 ratings)](https://appshunter.io/ios/app/readingtreee/id1506021475/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/ox-9/id6470810098/reviews)** |
| Number of ratings | **39** | 1 |
| Positive reviews | 62.5% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Monthly** | Every 6 weeks |
| Monetization | Free with in-app purchases | **Free** |
| Size | 43 MB | 27 MB |
| Requires iOS | 15.6 | **15.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [byeonghoon seo](https://appshunter.io/developer/1772278977) | [NewLearn Soft](https://appshunter.io/developer/1815216881) |

## What reviewers say

### ReadingTreee

[App page](https://appshunter.io/ios/app/readingtreee/id1506021475)

This app helps you cultivate a reading habit by visually tracking your progress and organizing your book collection. It allows you to manage reading statuses, create notes, and watch your personal reading tree grow as you read more.

**Highlights:** Manage reading status (Currently Reading, Want to Read, Finished), Reading tree growth system, Book search and barcode registration, Create and save reading notes, Intuitive and charming UI, Reading statistics screen

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 10 leaf | $0.29 | one-time |
| 20 leaf | $0.49 | one-time |


### 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 ReadingTreee free?

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

### 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, ReadingTreee or 고종훈 OX 문제집(9급 공무원 대비)?

고종훈 OX 문제집(9급 공무원 대비) is rated higher. ReadingTreee averages 4.6 out of 5 from 39 ratings, while 고종훈 OX 문제집(9급 공무원 대비) averages 5.0 from 1 ratings.

### Do ReadingTreee or 고종훈 OX 문제집(9급 공무원 대비) have ads?

ReadingTreee shows ads; 고종훈 OX 문제집(9급 공무원 대비) does not.

### Which is updated more often, ReadingTreee or 고종훈 OX 문제집(9급 공무원 대비)?

ReadingTreee ships an update monthly, and 고종훈 OX 문제집(9급 공무원 대비) every 6 weeks. Most recently, ReadingTreee was updated on September 28, 2026 and 고종훈 OX 문제집(9급 공무원 대비) on September 11, 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.*