# KoreanNumber vs Bootstrap Korean Grammar

The clearest difference is rating: KoreanNumber at 4.3 against Bootstrap Korean Grammar's 3.5. KoreanNumber also leads on in-app purchases (none vs 1) and review sentiment (67% vs 33%). Bootstrap Korean Grammar's advantage is ads (none vs shown) and update cadence (every 9 days vs every 3 months). On price, ratings volume, monetization model and device support there is nothing between them.

Both are free to download. Bootstrap Korean Grammar sells 1 one-off in-app purchase. KoreanNumber asks for nothing beyond the download.

KoreanNumber holds the better App Store score, 4.3 against 3.5. Both are backed by a comparable volume of ratings — 3 and 4 respectively. Written reviews point the same way: 67% of KoreanNumber's written reviews are positive against 33% of Bootstrap Korean Grammar's.

KoreanNumber ships an update every 3 months, Bootstrap Korean Grammar every 9 days. Both last shipped on October 24, 2026.

## The numbers

| Metric | KoreanNumber | Bootstrap Korean Grammar |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (3 ratings)](https://appshunter.io/ios/app/koreannumber/id1532212551/reviews)** | [3.5 (4 ratings)](https://appshunter.io/ios/app/bootstrap-korean-grammar/id1633765066/reviews) |
| Number of ratings | 3 | **4** |
| Positive reviews | **66.7% of reviews** | 33.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 3 months | **Every 9 days** |
| Monetization | Free | Free |
| Size | 65 MB | 38 MB |
| Requires iOS | **15.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [kazumasa fujihara](https://appshunter.io/developer/1516573304) | [Declan Software Ltd](https://appshunter.io/developer/932750266) |

## 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


### Bootstrap Korean Grammar

[App page](https://appshunter.io/ios/app/bootstrap-korean-grammar/id1633765066)

Master Korean grammar with a step-by-step approach. This app offers 185 grammar topics and over 3200 audio examples to build your communication skills. Interactive exercises and a personal study list enhance learning.

**Highlights:** 185 grammar topics, 3200+ audio examples, Step-by-step learning, Interactive exercises, Personal study list, Companion book integration

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All Korean Topics | $34.99 | one-time |


## Frequently asked questions

### Is KoreanNumber free?

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

### Is Bootstrap Korean Grammar free?

Bootstrap Korean Grammar is free to download, with in-app purchases available.

### Which has better reviews, KoreanNumber or Bootstrap Korean Grammar?

KoreanNumber is rated higher. KoreanNumber averages 4.3 out of 5 from 3 ratings, while Bootstrap Korean Grammar averages 3.5 from 4 ratings.

### Do KoreanNumber or Bootstrap Korean Grammar have ads?

KoreanNumber shows ads; Bootstrap Korean Grammar does not.

### Which is updated more often, KoreanNumber or Bootstrap Korean Grammar?

KoreanNumber ships an update every 3 months, and Bootstrap Korean Grammar every 9 days. Most recently, KoreanNumber was updated on October 24, 2026 and Bootstrap Korean Grammar 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.*