# KoreanNumber vs Keystitch

The clearest difference is rating: Keystitch at 5.0 against KoreanNumber's 4.3. Keystitch also leads on ads (none vs shown) and update cadence (every 3 days vs every 3 months). KoreanNumber's advantage is in-app purchases (none vs 3) and device support (3 vs 1). On price and ratings volume there is nothing between them.

Both are free to download. Keystitch sells 3 in-app purchases, starting at $5.99 per month. KoreanNumber asks for nothing beyond the download.

Keystitch holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 3 and 2 respectively.

KoreanNumber ships an update every 3 months, Keystitch every 3 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | KoreanNumber | Keystitch |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.3 (3 ratings)](https://appshunter.io/ios/app/koreannumber/id1532212551/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/keystitch/id6785419772/reviews)** |
| Number of ratings | **3** | 2 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 3 days** |
| Monetization | **Free** | Freemium |
| Size | 65 MB | 109 MB |
| Requires iOS | **15.0** | 17.6 |
| Devices | **iPhone, iPad, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [kazumasa fujihara](https://appshunter.io/developer/1516573304) | [Joshua Lucan](https://appshunter.io/developer/1800553692) |

## What reviewers say

### KoreanNumber

[App page](https://appshunter.io/ios/app/koreannumber/id1532212551)

Learn Korean numbers through interactive game modes. Master both Sino-Korean and Native Korean number systems. Practice converting numbers to Korean and vice versa.

**Highlights:** Sino Korean Number learning, Native Korean Number learning, Number to Korean conversion, Korean to Number conversion, Multiple game modes

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

**In-app purchases:** none


### Keystitch

[App page](https://appshunter.io/ios/app/keystitch/id6785419772)

Develop a visual understanding of music theory with short, focused drills. Train your mental keyboard for intervals, keys, and melodies. Practice hands-free and track your progress with adaptive exercises.

**Highlights:** Visual keyboard drills, Interval and key recognition, Melody tracking, Solfège practice, Hands-free practice modes, Adaptive learning, Progress tracking charts

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $5.99 | per month |
| Yearly | $29.99 | per year |
| Original Member | $199.99 | one-time |


## Frequently asked questions

### Is KoreanNumber free?

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

### Is Keystitch free?

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

### Which has better reviews, KoreanNumber or Keystitch?

Keystitch is rated higher. KoreanNumber averages 4.3 out of 5 from 3 ratings, while Keystitch averages 5.0 from 2 ratings.

### Do KoreanNumber or Keystitch have ads?

KoreanNumber shows ads; Keystitch does not.

### Which is updated more often, KoreanNumber or Keystitch?

KoreanNumber ships an update every 3 months, and Keystitch every 3 days. Most recently, KoreanNumber was updated on October 24, 2026 and Keystitch on October 24, 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.*