# IROCHIGAI: Color Challenge — Spot the Different Color

> Spot the Different Color (iPhone/iPad app by Toshiyuki Susa.)

- Source: https://appshunter.io/ios/app/irochigai-color-challenge/id6797120711 (this page in markdown: same URL + `.md`)
- Developer: [Toshiyuki Susa](https://appshunter.io/developer/1556426603)
- Category: Games, Entertainment, Casual, Puzzle
- Price: Free
- Age rating: 4+
- Requires: iOS 17.0 · 5 MB
- Languages: American English, Japanese
- Released: 2026-08-12
- Data updated: 2026-08-14
- User reviews in markdown: https://appshunter.io/ios/app/irochigai-color-challenge/id6797120711/reviews.md

## What is IROCHIGAI?

Can you spot the one different color before time runs out?

IROCHIGAI is a fast and simple color challenge where you find the subtly different tile and tap it.

The rules are easy, but every correct answer makes the game more difficult. The grid grows, the timer gets shorter, and the difference between colors becomes harder to see.

How far can your eyes and concentration take you?

FEATURES

• Simple one-tap gameplay
• Quick games you can play anywhere
• Increasing difficulty after every correct answer
• Grids ranging from 2×2 to 6×6
• Personal best score tracking
• Game Center leaderboards
• Color vision support mode
• Individual sound and haptic settings
• Japanese and English language support

Sharpen your observation, focus, and reflexes as you aim for a new high score.

Challenge the leaderboard and discover how many color differences you can spot in a row.


## Version history (last 1 release)

### 1.0.0 — 2026-08-12

No release notes.

## More apps by Toshiyuki Susa

- [作業&睡眠BGMアプリ](https://appshunter.io/ios/app/and-bgm/id1556426601)
- [ビックリ効果音](https://appshunter.io/ios/app/id1570027366)
- [今日ジム行く？](https://appshunter.io/ios/app/id1572447711)
- [声の主を当てろ アニメ編](https://appshunter.io/ios/app/id1578157025)
- [回転してるのな〜んだ？](https://appshunter.io/ios/app/id1611895973)
- [コマッタ](https://appshunter.io/ios/app/id6446321438)

All apps by Toshiyuki Susa: https://appshunter.io/developer/1556426603

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-14.*