# BUNKAI

> Number decomposition puzzle game using prime factorization to defeat monsters. (iPhone/iPad app by ZERONE.)

- Source: https://appshunter.io/ios/app/bunkai/id1518757863 (this page in markdown: same URL + `.md`)
- Developer: [ZERONE](https://appshunter.io/developer/1708775781)
- Category: Games, Education, Casual, Word
- Price: Free
- Rating: 4.50/5 from 2 App Store ratings
- Age rating: 17+
- Requires: iOS 11.0 · 114 MB
- Languages: English
- Released: 2020-07-08
- Data updated: 2026-06-04
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/bunkai/id1518757863/reviews.md

## What is BUNKAI?

１になるまで数字を分解しよう！
ゲームしながら楽しく計算力が鍛えられる！

「BUNKAI」はシンプルでハマり度120%の脳トレゲームです。
操作方法はタップするだけ。
遊べば遊ぶほど脳が活性化されます。

素因数分解を駆使してモンスターをぶっ飛ばせ！

## Key features

- Number decomposition puzzles
- Prime factorization mechanics
- Monster-battling gameplay
- Calculation skill training
- Simple tap controls
- Addictive brain training


## Frequently asked questions about BUNKAI

### What is BUNKAI?

BUNKAI is a brain-training puzzle game where players break down numbers until they reach one, using prime factorization to defeat monsters. It's designed to make learning math fun and improve calculation skills.

### How do you play BUNKAI?

The gameplay involves tapping to decompose numbers. You'll use prime factorization to defeat monsters, making the process of calculation engaging and active.

### Is BUNKAI free to play?

Yes, BUNKAI is free to download and play. However, it does contain advertisements.

### Does BUNKAI have ads?

Yes, BUNKAI contains advertisements. It is an ad-supported game.

### What devices does BUNKAI support?

BUNKAI is available on iPhone and iPod devices.

### What is the age rating for BUNKAI?

BUNKAI has an age rating of 17+.

### How often is BUNKAI updated?

The latest version of BUNKAI is 1.0.7, which was last updated on July 2, 2021. The release date was July 8, 2020.

### What are the main gameplay mechanics in BUNKAI?

The core mechanics involve number decomposition and prime factorization, which are used in a strategic way to defeat monsters within the game.

## Version history (last 5 releases)

### 1.0.7 — 2021-07-02

広告に関する軽微な不具合を修正しました！

### 1.0.4 — 2021-03-12

-Minor bug fix
-Performance improvements

### 1.0.3 — 2020-10-07

Fixed a bug related to advertising and now supports iOS14

### 1.0.2 — 2020-09-16

bug fix

### 1.0.1 — 2020-07-12

bug fix

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| App | Rating | Price | Category |
| --- | --- | --- | --- |
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## More apps by ZERONE

- [スイーツドラゴン -完全無料！新感覚シューティングゲーム-](https://appshunter.io/ios/app/id1023598820)
- [One Stroke Puzzle : PURURUN](https://appshunter.io/ios/app/one-stroke-puzzle-pururun/id1145262669)
- [Brain Training Puzzle! PITAPON](https://appshunter.io/ios/app/brain-training-puzzle-pitapon/id1156049875)
- [PURUPURU：ぷるぷる](https://appshunter.io/ios/app/purupuru/id1163693695)
- [大人がハマる物理脳トレ！ポポポン～頭が良くなる脳トレパズル～](https://appshunter.io/ios/app/id1180521682)
- [Make 10 - Logical Brain](https://appshunter.io/ios/app/make-10-logical-brain/id1192640935)

All apps by ZERONE: https://appshunter.io/developer/1708775781

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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 2026-06-04.*