# OKIRU｜Activate your brain — Activate your brain in 30sec

> Activate your brain in 30sec (iPhone/iPad app by Ryusei Okamoto.)

- Source: https://appshunter.io/ios/app/okiruactivate-your-brain/id6737179030 (this page in markdown: same URL + `.md`)
- Developer: [Ryusei Okamoto](https://appshunter.io/developer/1775109038)
- Category: Games, Productivity, Casual, Puzzle
- Price: Free
- Age rating: 4+
- Requires: iOS 15.6 · 6 MB
- Languages: Japanese
- Released: 2024-10-22
- Data updated: 2026-05-20
- User reviews in markdown: https://appshunter.io/ios/app/okiruactivate-your-brain/id6737179030/reviews.md

## What is OKIRU｜Activate your brain?

This is a puzzle game that wakes up your brain in 30 seconds

How to Play:
From the 9 choices below, quickly select the item that differs from the one shown above in all aspects (color, shape, alphabet)!


## Version history (last 5 releases)

### 1.3.4 — 2024-12-28

-Add Marketing URL

### 1.3.3 — 2024-12-24

- Japanese language support
- Fixed ranking bug
- Added ON/OFF button for background music

### 1.2.0 — 2024-10-24

Fixed several bugs and issues including text visibility in the name input screen and pause button limitations.

### 1.1.1 — 2024-10-23

What's New in Version 1.1.1:
- Now compatible with iOS 15.0 and later
- Improved app stability

### 1.0.0 — 2024-10-22

No release notes.

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## More apps by Ryusei Okamoto

- [AITAN｜AI英単語帳](https://appshunter.io/ios/app/aitanai/id6739388103)
- [Reiwa Note\|Take Notes with AI](https://appshunter.io/ios/app/reiwa-notetake-notes-with-ai/id6753931168)
- [MeroTalk \| LINE Analysis](https://appshunter.io/ios/app/merotalk-line-analysis/id6757545135)
- [Clone \| Create your AI Clone](https://appshunter.io/ios/app/clone-create-your-ai-clone/id6757676760)
- [MeroTalk DM \| DM Compatibility](https://appshunter.io/ios/app/merotalk-dm-dm-compatibility/id6759235144)

All apps by Ryusei Okamoto: https://appshunter.io/developer/1775109038

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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 2026-05-20.*