# !

> Instantaneous reaction time testing game with Game Center integration. (iPhone/iPad app by RUCKYGAMES CO., LTD..)

- Source: https://appshunter.io/ios/app/id371708620 (this page in markdown: same URL + `.md`)
- Developer: [RUCKYGAMES CO., LTD.](https://appshunter.io/developer/315948909)
- Category: Games, Entertainment, Action, Sports
- Price: Free
- Rating: 3.70/5 from 3 App Store ratings · 143 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.0 · 9 MB
- Languages: American English, Japanese
- Released: 2010-05-21
- Data updated: 2026-08-02
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/id371708620/reviews.md

## What is !?

Reflexes…
Wait… , "!" When you see, touch!
Instantaneous power check!


Game Center!

## Key features

- Tap on "!" to react
- Instantaneous power check
- Game Center integration
- Test reflexes

## Recent user reviews (10 of 143)

All indexed reviews: https://appshunter.io/ios/app/id371708620/reviews.md

### 1/5 — Непонятно

*2025-05-20, version 1.5.3*

Что оно делает

### 4/5 — めっちゃいい

*2024-10-13, version 1.5.3*

たのしい

### 5/5 — 暇つぶしに最適

*2024-09-01, version 1.5.3*

暇つぶしに最適かと。00.01出せましたが、勘です。00.10~00.01はほぼ勘かな。

### 5/5 — 最高ううううやなあゎなたわほなわは

*2023-12-04, version 1.5.3*

なわなたわめたあをなたぁ、ばたわざたさいこう

### 5/5 — Best Game Ever!

*2023-08-08, version 1.5.3*

Most Fun I have ever had in any Game on the Apple App Store! Great Job RuckyGames!

### 5/5 — !

*2023-06-01*

The Simplest and Best Game Ever! Nothing beats this!

### 5/5 — 暇だったので1分だけやってみた

*2021-11-03, version 1.5.2*

最高は00.05でした

### 5/5 — やばい

*2021-02-12, version 1.5.2*

00・01とりました

### 4/5 — 卒業します。

*2020-11-21, version 1.5.2*

5分という短い間でしたが、ありがとうございました😭😭😭

### 5/5 — お世話になってます！

*2020-09-21, version 1.5.2*

自分のやっているスポーツの練習に役立てています！使い方は無限大

## Frequently asked questions about !

### What is this app about?

This app is designed to test your reflexes and reaction time. You need to tap the screen as quickly as possible when you see the "!" symbol appear.

### How do I play?

The gameplay is straightforward: simply tap the screen the instant you notice the "!" symbol. It's a test of your instantaneous power and quick reflexes.

### Is there a cost to play?

The application is free to download and play. It is supported by advertisements.

### Can I compete with others?

Yes, the app features Game Center integration, allowing you to compare your reaction times and scores with friends and other players worldwide.

## Version history (last 5 releases)

### 1.5.3 — 2022-03-05

bug fixed.

### 1.5.2 — 2016-09-13

This app has been updated by Apple to display the Apple Watch app icon.

64bit supported.
bug fixed.

### 1.5.1 — 2015-02-18

bug fixed.

### 1.5.0 — 2014-10-31

5.5 inch not play updated.
iOS8 and 5.5 inch supported.
bug fixed.

### 1.4.2 — 2014-02-09

bug fixed.

## Apps similar to !

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Jump Ball Special](https://appshunter.io/ios/app/jump-ball-special/id1640405030) | — | Free | Games |
| [The Amazing LongJump](https://appshunter.io/ios/app/the-amazing-longjump/id1558958003) | — | Free | Games |
| [Draw the Circle](https://appshunter.io/ios/app/draw-the-circle/id6745477717) | — | Free | Games |
| [Running Man - In The Sky](https://appshunter.io/ios/app/running-man-in-the-sky/id6479177590) | — | Free | Games |
| [Avoid -Keep avoiding the enemy](https://appshunter.io/ios/app/avoid-keep-avoiding-the-enemy/id6627344922) | — | Free | Games |
| [Go to work!](https://appshunter.io/ios/app/go-to-work/id6740945152) | — | Free | Games |

## More apps by RUCKYGAMES CO., LTD.

- [iSashimiLITE](https://appshunter.io/ios/app/isashimilite/id315948906)
- [ColorPuzzle](https://appshunter.io/ios/app/colorpuzzle/id318013501)
- [WhiteJigsawPuzzle-LITE-](https://appshunter.io/ios/app/whitejigsawpuzzle-lite/id321748774)
- [Regent Style vs Trombone](https://appshunter.io/ios/app/regent-style-vs-trombone/id321913937)
- [iRevolution](https://appshunter.io/ios/app/irevolution/id322644836)
- [iRevolution lite](https://appshunter.io/ios/app/irevolution-lite/id324018138)

All apps by RUCKYGAMES CO., LTD.: https://appshunter.io/developer/315948909

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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 2026-08-02.*