# 정처기 필기 vs 에이필

The clearest difference is in-app purchases: 에이필 at none against 정처기 필기's 3. 에이필 also leads on update cadence (daily vs every 3 days). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. 정처기 필기 sells 3 in-app purchases, starting at $1.99 per month. 에이필 asks for nothing beyond the download.

정처기 필기 ships an update every 3 days, 에이필 daily. The most recent releases landed on October 28, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | 정처기 필기 | 에이필 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | Every 3 days | **Daily** |
| Size | 97 MB | 47 MB |
| Requires iOS | 15.1 | **15.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [DayLab(KR)](https://appshunter.io/developer/1883683802) | [SeonYoung Park](https://appshunter.io/developer/1895321430) |

## What reviewers say

### 정처기 필기

[App page](https://appshunter.io/ios/app/id6761716439)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 정처기 프리미엄 월간 | $1.99 | per month |
| 정처기 프리미엄 3개월 패스 | $3.99 | per 3 months |
| 정처기 프리미엄 평생 이용권 | $5.99 | one-time |


### 에이필

[App page](https://appshunter.io/ios/app/ai/id6763449367)

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

**In-app purchases:** none


## Frequently asked questions

### Is 정처기 필기 free?

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

### Is 에이필 free?

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

### Do 정처기 필기 or 에이필 have ads?

Both 정처기 필기 and 에이필 show ads.

### Which is updated more often, 정처기 필기 or 에이필?

정처기 필기 ships an update every 3 days, and 에이필 daily. Most recently, 정처기 필기 was updated on October 28, 2026 and 에이필 on October 25, 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.*