# Difference pairs — Very difficult puzzles

> Difficult puzzle game for finding mistakes in images. (iPhone/iPad app by koikoi.biz.)

- Source: https://appshunter.io/ios/app/difference-pairs/id564438548 (this page in markdown: same URL + `.md`)
- Developer: [koikoi.biz](https://appshunter.io/developer/444917150)
- Category: Games, Education, Family, Puzzle
- Price: Free
- Rating: 4.30/5 from 4 App Store ratings · 54 written reviews indexed
- Age rating: 4+
- Requires: iOS 12.0 · 53 MB
- Languages: American English, Japanese
- Released: 2012-10-10
- Data updated: 2026-08-16
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/difference-pairs/id564438548/reviews.md

## What is Difference pairs?

The Hardest Mistake in the App Store
250 questions in total

It is a fun free mistake finding game.

 Please download and enjoy.

This application has become 3rd overall in iPad division of Japanese app store. Thank you very much.

## Key features

- 250 challenging puzzles
- Mistake finding game
- Difficult gameplay
- Free to play
- High chart ranking

## Recent user reviews (10 of 54)

All indexed reviews: https://appshunter.io/ios/app/difference-pairs/id564438548/reviews.md

### 5/5 — 音楽に癒されます

*2020-11-17*

BGMが素敵

### 5/5 — 次々と挑戦！！

*2020-09-15*

たまにパーフェクトが出ると嬉しい

### 1/5 — ハァー

*2020-06-07*

アプリを入手したのですが、画面が横になり半分しか表示されなくてプレイが出来ません(T-T) こちらのスマホに問題があるのでしょうかねぇ(TT)

### 5/5 — (^^)

*2020-05-08*

ついつい時間を忘れて没頭してしまう

### 5/5 — いいトレーニング

*2020-05-02*

私は50代です。細かい箇所のちがいに気づきにくくなってきたので、とても良いトレーニングになっていると思います。クリアできた時は「よしっ！まだまだいける！」って自信が持てます。

### 5/5 — いい

*2020-04-17*

暇つぶしにいい

### 5/5 — 面白い

*2020-04-04*

結構難しく大人がちょっとした時に楽しんでいます。

### 5/5 — 脳トレ

*2020-02-27*

年を重ねるにつれ大事なのは脳トレです

### 5/5 — ハマる！

*2019-12-24*

結構むずかしい。
時間があっという間に過ぎるので、ご注意を！？

### 5/5 — 楽しめました♪

*2019-12-13*

間違い探し、頭の体操にピッタリです
どうしても見つけられなくて電車をよく乗り越してしまいます
ヒントボタンがあって押すと正解のある画面の4分割の
どこかが示されるといいですね
「そうきたかっ」と作者の意図がわかって
嬉しいこともありますよ
退屈だった昼休みが楽しみになりました

## Frequently asked questions about Difference pairs

### What is this app about?

This app is a challenging mistake-finding game that presents users with 250 unique puzzles. It's designed to be a difficult yet fun experience for players who enjoy testing their observation skills.

### How many puzzles are included?

The application features a total of 250 questions or puzzles for users to solve. This provides a substantial amount of content for players to engage with.

### Is this app free to play?

Yes, the app is described as a fun free mistake-finding game. While it is free to download and play, it does contain advertisements.

### What makes this app difficult?

The app is marketed as having 'very difficult puzzles' and is even referred to as 'The Hardest Mistake in the App Store.' This suggests a high level of challenge in identifying the differences within the images.

### What platforms is this app available on?

The description mentions its success in the iPad division of the Japanese app store, indicating it is available on iOS devices, specifically iPads. Compatibility with other platforms is not specified.

## Version history (last 5 releases)

### 1.26 — 2021-09-30

- Changed screen structure.

### 1.25 — 2021-09-16

- Minor bugs have been fixed.

### 1.24 — 2021-09-02

- Reduced ads.

### 1.23 — 2020-12-20

- Added images.

### 1.22 — 2020-11-18

- Supported iOS14.
- Added images.

## Apps similar to Difference pairs

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Cat Find Differences](https://appshunter.io/ios/app/cat-find-differences/id6480407071) | 5.0 (3) | Free | Games |
| [うごくマチガイ探し](https://appshunter.io/ios/app/id1455077909) | 5.0 (4) | Free | Games |
| [Find the Difference: Big Game](https://appshunter.io/ios/app/find-the-difference-big-game/id6723894151) | 5.0 (3) | Free | Games |
| [ゾンビ探し](https://appshunter.io/ios/app/id1445814326) | 4.9 (7) | Free | Games |
| [もじさがし](https://appshunter.io/ios/app/id1096756212) | — | Free | Games |
| [まちがいさがし - がんばれ！ルルロロ](https://appshunter.io/ios/app/id633345239) | 4.8 (14) | Free | Games |

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All apps by koikoi.biz: https://appshunter.io/developer/444917150

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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 2026-08-16.*