# DDAYO vs 정처기 실기

The clearest difference is in-app purchases: DDAYO at none against 정처기 실기's 3. DDAYO also leads on ads (none vs shown) and update cadence (daily vs every 5 days). 정처기 실기's advantage is device support (3 vs 1) and iOS requirement (15.1 vs 18.0). On price there is nothing between them.

Both are free to download. 정처기 실기 sells 3 in-app purchases, starting at $2.99 per month. DDAYO asks for nothing beyond the download.

DDAYO ships an update daily, 정처기 실기 every 5 days. The most recent releases landed on October 30, 2026 and October 18, 2026 respectively.

## The numbers

| Metric | DDAYO | 정처기 실기 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Every 5 days |
| Monetization | — | Free with in-app purchases |
| Size | 46 MB | 85 MB |
| Requires iOS | 18.0 | **15.1** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [JinGyun Jeong](https://appshunter.io/developer/1535411435) | [dasong sim](https://appshunter.io/developer/1883683802) |

## What reviewers say

### DDAYO

[App page](https://appshunter.io/ios/app/ddayo/id6743990712)

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

**In-app purchases:** none


### 정처기 실기

[App page](https://appshunter.io/ios/app/id6770183152)

Prepare for the practical exam with a study app designed for direct answer input. It features scientifically spaced reviews, detailed explanations, and practice modes that mimic the actual test format. Track your progress and identify weak areas to maximize your study efficiency.

**Highlights:** Actual exam format practice modes, 4,400+ questions with detailed explanations, 300+ concept lessons, Smart review system (FSRS algorithm), Weakness analysis heatmap, 10 full-length mock exams, Offline learning support

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 프리미엄 월간 | $2.99 | per month |
| 프리미엄 3개월 | $5.99 | per 3 months |
| 프리미엄 연간 | $14.99 | per year |


## Frequently asked questions

### Is DDAYO free?

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

### Is 정처기 실기 free?

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

### Do DDAYO or 정처기 실기 have ads?

정처기 실기 shows ads; DDAYO does not.

### Which is updated more often, DDAYO or 정처기 실기?

DDAYO ships an update daily, and 정처기 실기 every 5 days. Most recently, DDAYO was updated on October 30, 2026 and 정처기 실기 on October 18, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*