# K vs SayThis

The clearest difference is update cadence: SayThis at daily against K's every 3 days. SayThis also leads on iOS requirement (15.0 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. K sells 4 one-off in-app purchases and SayThis sells 2 in-app purchases, starting at $6.99 per month. Whichever you choose, the download price is not the number that matters.

K ships an update every 3 days, SayThis daily. The most recent releases landed on October 24, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | K | SayThis |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 3 days | **Daily** |
| Size | 41 MB | 42 MB |
| Requires iOS | 18.6 | **15.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Been KyoungSik](https://appshunter.io/developer/1874179329) | [Everonx](https://appshunter.io/developer/6789786341) |

## 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 |


### SayThis

[App page](https://appshunter.io/ios/app/saythis-learn-korean/id6808048929)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| SayThis Plus | $6.99 | per month |
| 100 Credits | $3.99 | one-time |


## Frequently asked questions

### Is K free?

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

### Is SayThis free?

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

### Do K or SayThis have ads?

Both K and SayThis show ads.

### Which is updated more often, K or SayThis?

K ships an update every 3 days, and SayThis daily. Most recently, K was updated on October 24, 2026 and SayThis on October 9, 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.*