# 모두의 자격증 vs 데이프렙

The clearest difference is in-app purchases: 데이프렙 at none against 모두의 자격증's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. 모두의 자격증 sells 1 one-off in-app purchase. 데이프렙 asks for nothing beyond the download.

모두의 자격증 ships an update every 8 days, 데이프렙 every 6 days. The most recent releases landed on October 8, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | 모두의 자격증 | 데이프렙 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 8 days | **Every 6 days** |
| Monetization | — | Free with in-app purchases |
| Size | 42 MB | 79 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 12+ | 4+ |
| Developer | [woosik choi](https://appshunter.io/developer/1845521022) | [dasong sim](https://appshunter.io/developer/1883683802) |

## What reviewers say

### 모두의 자격증

[App page](https://appshunter.io/ios/app/id6779944719)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 광고 제거 | $2.99 | one-time |


### 데이프렙

[App page](https://appshunter.io/ios/app/cbt/id6802236999)

Prepare for multiple certification exams with a single app. Access over 80 exams and 230,000 questions, including national certifications, civil service, and NCS. Utilize free learning features or unlock premium content with subscriptions.

**Highlights:** Over 80 exams and 230,000 questions, Daily study planner, Subject selection and progress tracking, Detailed answer explanations, Spaced repetition for weak areas, Practice exams and past papers, Cross-device progress syncing

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

**In-app purchases:** none


## Frequently asked questions

### Is 모두의 자격증 free?

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

### Is 데이프렙 free?

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

### Do 모두의 자격증 or 데이프렙 have ads?

Both 모두의 자격증 and 데이프렙 show ads.

### Which is updated more often, 모두의 자격증 or 데이프렙?

모두의 자격증 ships an update every 8 days, and 데이프렙 every 6 days. Most recently, 모두의 자격증 was updated on October 8, 2026 and 데이프렙 on October 29, 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.*