# K vs 한능검 필기

The clearest difference is in-app purchases: 한능검 필기 at none against K's 4. 한능검 필기 also leads on iOS requirement (15.0 vs 18.6). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. K sells 4 one-off in-app purchases. 한능검 필기 asks for nothing beyond the download.

K ships an update every 3 days, 한능검 필기 every 5 days. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | K | 한능검 필기 |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Every 3 days** | Every 5 days |
| Size | 41 MB | 63 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Been KyoungSik](https://appshunter.io/developer/1874179329) | [hyuncheol seo](https://appshunter.io/developer/6797554122) |

## What reviewers say

### K

[App page](https://appshunter.io/ios/app/k-spacing-master/id6758647638)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 광고 제거 한달권 | $0.49 | one-time |
| AI 설명권 100회 | $0.49 | one-time |
| AI 설명권 한달 무제한 | $1.99 | one-time |
| 광고 제거 1년권 | $1.99 | one-time |


### 한능검 필기

[App page](https://appshunter.io/ios/app/id6802488521)

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

**In-app purchases:** none


## Frequently asked questions

### Is K free?

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

### Is 한능검 필기 free?

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

### Do K or 한능검 필기 have ads?

Both K and 한능검 필기 show ads.

### Which is updated more often, K or 한능검 필기?

K ships an update every 3 days, and 한능검 필기 every 5 days. Most recently, K was updated on October 24, 2026 and 한능검 필기 on October 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.*