# 해커스 ONE vs 뚝딱

The clearest difference is review sentiment: 해커스 ONE at 63% against 뚝딱's 0%. 뚝딱's advantage is in-app purchases (none vs 4) and iOS requirement (13.0 vs 15.1). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 해커스 ONE sells 4 one-off in-app purchases. 뚝딱 asks for nothing beyond the download.

해커스 ONE ships an update every 2 weeks, 뚝딱 fortnightly. The most recent releases landed on September 23, 2026 and August 16, 2026 respectively.

## The numbers

| Metric | 해커스 ONE | 뚝딱 |
| --- | --- | --- |
| 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** | 0.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 2 weeks** | Fortnightly |
| Monetization | Free with in-app purchases | **Free** |
| Size | 135 MB | 10 MB |
| Requires iOS | 15.1 | **13.0** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Champ Study Institute](https://appshunter.io/developer/466747997) | [주식회사 소프트스퀘어드](https://appshunter.io/developer/1461653937) |

## 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 |


### 뚝딱

[App page](https://appshunter.io/ios/app/tuktalk/id1598319949)

Connect with experienced professionals to review your portfolio and gain insights into career paths. Browse detailed portfolios from industry experts in design and IT development. Easily register your own portfolio to share your work and learn from others.

**Highlights:** Find mentors in design and IT, Browse expert portfolios, Detailed category filtering, Portfolio registration, Watermarked portfolio viewing, View portfolio history

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

**In-app purchases:** none


## Frequently asked questions

### Is 해커스 ONE free?

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

### Is 뚝딱 free?

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

### Do 해커스 ONE or 뚝딱 have ads?

Neither 해커스 ONE nor 뚝딱 shows ads.

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

해커스 ONE ships an update every 2 weeks, and 뚝딱 fortnightly. Most recently, 해커스 ONE was updated on September 23, 2026 and 뚝딱 on August 16, 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.*