# KANJI the difference vs 回転箱

The clearest difference is ads: 回転箱 at none against KANJI the difference's shown. 回転箱 also leads on iOS requirement (13.0 vs 18.0). KANJI the difference's advantage is update cadence (every 3 months vs every 5 months). On price, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

KANJI the difference ships an update every 3 months, 回転箱 every 5 months. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | KANJI the difference | 回転箱 |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/kanji-the-difference/id1521522649/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 months** | Every 5 months |
| Monetization | Ad-supported | — |
| Size | 15 MB | 82 MB |
| Requires iOS | 18.0 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Shuya Komiya](https://appshunter.io/developer/1504097686) | [takanori shinno](https://appshunter.io/developer/1784094643) |

## What reviewers say

### KANJI the difference

[App page](https://appshunter.io/ios/app/kanji-the-difference/id1521522649)

Test your kanji recognition skills by finding the single different character among similar ones within a 30-second time limit. Earn bonus points for consecutive correct answers and track your progress with detailed play statistics. Enjoy a collection of over 300 questions, from common to obscure kanji, accompanied by calming background music.

**Highlights:** Find different kanji, 30-second time limit, Consecutive answer bonus, Over 300 questions, Score sharing, Play status tracking, Calming background music

**Features:** macOS Compatibility

**In-app purchases:** none


### 回転箱

[App page](https://appshunter.io/ios/app/id6744838010)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is KANJI the difference free?

KANJI the difference is free to download, with no in-app purchases.

### Is 回転箱 free?

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

### Do KANJI the difference or 回転箱 have ads?

KANJI the difference shows ads; 回転箱 does not.

### Which is updated more often, KANJI the difference or 回転箱?

KANJI the difference ships an update every 3 months, and 回転箱 every 5 months. Most recently, KANJI the difference was updated on October 24, 2026 and 回転箱 on October 25, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*