# 해커스 ONE vs 유하다요

The clearest difference is review sentiment: 해커스 ONE at 63% against 유하다요's 53%. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. 해커스 ONE sells 4 one-off in-app purchases and 유하다요 sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

해커스 ONE ships an update every 2 weeks, 유하다요 every 3 weeks. The most recent releases landed on October 18, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | 해커스 ONE | 유하다요 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[3.5 (10 ratings)](https://appshunter.io/ios/app/one/id1538534916/reviews)** | — |
| Number of ratings | **10** | — |
| Positive reviews | **62.9% of reviews** | 53.1% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Every 3 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 192 MB | 87 MB |
| Requires iOS | 15.1 | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Champ Study Institute](https://appshunter.io/developer/466747997) | [Yuha Jeon](https://appshunter.io/developer/1543300484) |

## What reviewers say

### 해커스 ONE

[App page](https://appshunter.io/ios/app/one/id1538534916)

Access a wide range of online courses from Hackers in various fields like language, civil service exams, and professional certifications. Enjoy convenient features like personalized course lists, free lectures, and study materials.

**Highlights:** Browse courses by interest, View lecture, textbook, and review info, Access free lectures and study materials, Play lectures directly from 'My Lectures', Organize lectures with DIY features, Utilize notepad and Q&A features, Receive news and share study information

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 왕초보  그림으로 배우는 일본어 회화 | $2.99 | one-time |
| 원어민이 알려주는 리얼 여행영어 - 해외 현지 촬영 | $2.99 | one-time |
| 이유리의 누구나 쉽게 배우는 여행 중국어 (전반부) | $2.99 | one-time |
| 제2외국어 대표강의 - 9강좌 종합 | $30.99 | one-time |


### 유하다요

[App page](https://appshunter.io/ios/app/id1543300482)

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 한자 속공패스 | $119.99 | one-time |
| JLPT 집중패키지 | $199.99 | one-time |
| 드림패키지 | $229.99 | one-time |


## Frequently asked questions

### Is 해커스 ONE free?

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

### Is 유하다요 free?

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

### Do 해커스 ONE or 유하다요 have ads?

Neither 해커스 ONE nor 유하다요 shows ads.

### Which is updated more often, 해커스 ONE or 유하다요?

해커스 ONE ships an update every 2 weeks, and 유하다요 every 3 weeks. Most recently, 해커스 ONE was updated on October 18, 2026 and 유하다요 on October 12, 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.*