# YBM어학원 vs 한국사 오답노트(한능검 심화 문제&해설)

The clearest difference is review sentiment: 한국사 오답노트(한능검 심화 문제&해설) at 100% against YBM어학원's 15%. 한국사 오답노트(한능검 심화 문제&해설) also leads on rating (4.8 vs 1.7) and update cadence (every 6 weeks vs every 4 months). YBM어학원's advantage is in-app purchases (none vs 2) and ads (none vs shown). On price, ratings volume and device support there is nothing between them.

Both are free to download. 한국사 오답노트(한능검 심화 문제&해설) sells 2 one-off in-app purchases. YBM어학원 asks for nothing beyond the download.

한국사 오답노트(한능검 심화 문제&해설) holds the better App Store score, 4.8 against 1.7. Both are backed by a comparable volume of ratings — 3 and 6 respectively. Written reviews point the same way: 15% of YBM어학원's written reviews are positive against 100% of 한국사 오답노트(한능검 심화 문제&해설)'s.

YBM어학원 ships an update every 4 months, 한국사 오답노트(한능검 심화 문제&해설) every 6 weeks. The most recent releases landed on October 14, 2026 and October 17, 2026 respectively.

## The numbers

| Metric | YBM어학원 | 한국사 오답노트(한능검 심화 문제&해설) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [1.7 (3 ratings)](https://appshunter.io/ios/app/ybm/id1517756311/reviews) | **[4.8 (6 ratings)](https://appshunter.io/ios/app/and/id1538308063/reviews)** |
| Number of ratings | 3 | **6** |
| Positive reviews | 14.8% of reviews | **100.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 9 MB | 109 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [YBM NET, Inc.](https://appshunter.io/developer/332188969) | [Myoungsook Ji](https://appshunter.io/developer/1538308065) |

## What reviewers say

### YBM어학원

[App page](https://appshunter.io/ios/app/ybm/id1517756311)

Manage attendance, record temperature checks, and register for courses. Take English conversation level tests anytime, anywhere via mobile.

**Highlights:** Accurate attendance management, QR code temperature check recording, Course registration, Mobile English level testing, Student-initiated attendance check

**In-app purchases:** none


### 한국사 오답노트(한능검 심화 문제&해설)

[App page](https://appshunter.io/ios/app/and/id1538308063)

Prepare for the Korean History Proficiency Test with this app. It offers past exam questions and detailed explanations to aid your study. Master Korean history for the official certification.

**Highlights:** Korean history test preparation, Past exam questions, Detailed explanations, Study aid, Certification preparation

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 한국사 오답노트 프로 버전(1회 구매로 평생이용) | $3.99 | one-time |
| 프리미엄 업그레이드(1회 구매로 평생이용) | $3.99 | one-time |


## Frequently asked questions

### Is YBM어학원 free?

YBM어학원 is free to download, with no in-app purchases.

### Is 한국사 오답노트(한능검 심화 문제&해설) free?

한국사 오답노트(한능검 심화 문제&해설) is free to download, with in-app purchases available.

### Which has better reviews, YBM어학원 or 한국사 오답노트(한능검 심화 문제&해설)?

한국사 오답노트(한능검 심화 문제&해설) is rated higher. YBM어학원 averages 1.7 out of 5 from 3 ratings, while 한국사 오답노트(한능검 심화 문제&해설) averages 4.8 from 6 ratings.

### Do YBM어학원 or 한국사 오답노트(한능검 심화 문제&해설) have ads?

한국사 오답노트(한능검 심화 문제&해설) shows ads; YBM어학원 does not.

### Which is updated more often, YBM어학원 or 한국사 오답노트(한능검 심화 문제&해설)?

YBM어학원 ships an update every 4 months, and 한국사 오답노트(한능검 심화 문제&해설) every 6 weeks. Most recently, YBM어학원 was updated on October 14, 2026 and 한국사 오답노트(한능검 심화 문제&해설) on October 17, 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.*