# subaku

> Exploding number puzzle game with strategic gameplay and multiple modes. (iPhone/iPad app by Eric Koziol.)

- Source: https://appshunter.io/ios/app/subaku/id579943201 (this page in markdown: same URL + `.md`)
- Developer: [Eric Koziol](https://appshunter.io/developer/486072193)
- Category: Games, Entertainment, Casual, Puzzle
- Price: Free with in-app purchases
- Rating: 4.00/5 from 1 App Store ratings · 9 written reviews indexed
- Age rating: 4+
- Requires: iOS 14.0 · 54 MB
- Languages: American English, Japanese
- Released: 2013-03-06
- Data updated: 2026-06-10
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/subaku/id579943201/reviews.md

## What is subaku?

Subaku, Japanese for Number Explosion, is just as it sounds. You touch a number, it explodes (value decreases by one), then the surrounding numbers pick up some of the collateral explosion (value increases by one). Easy to learn and difficult to master, Subaku will keep you entertained for hours as you devise strategies to attack each puzzle and complete them in as few moves as possible.

Subaku contains one hundred puzzles to solve and master. Also available to play is "Endless Mode" where the goal is to make matches while not letting the board clear.

Soundtrack by Eirik Suhrke. (Spelunky, Super Crate Box, Ridiculous Fishing)

## Key features

- Number explosion mechanic
- Strategic puzzle solving
- 100 unique puzzles
- Endless Mode
- Easy to learn, hard to master

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| A Tip | $0.99 | one-time |
| A Huge Tip | $1.99 | one-time |
| A Ginormous Tip | $4.99 | one-time |


## Recent user reviews (9 of 9)

All indexed reviews: https://appshunter.io/ios/app/subaku/id579943201/reviews.md

### 5/5 — Simply addictive!

*2014-05-19*

A fiendishly addictive puzzle game that starts gently but quickly becomes challenging and engaging. The simple basic rule set created a game that is accessible and easy to understand - so much so my 5 year old loves it - yet provides a deep challenge. Addictive!

### 5/5 — Puzzle Explosion?!

*2013-10-13*

This puzzler and it's excellent take on sudoku kept me amused and scratched my puzzle itch.

### 3/5 — Great concept, but something is missing

*2013-07-20*

I really enjoy puzzle and match-3 games, and this game has an interesting and compelling core mechanic. The presentation and UI are awkward, though. Buttons don't look like buttons, navigating through menus feels clunky and clearing numbers off of the board could feel more satisfying. Could benefit from a stronger, more integrated tutorial as well.

### 5/5 — Really cool game

*2013-03-25*

It's cheap it becomes very challenging but he noises he game makes are really annoying so just turn the volume down

### 5/5 — Fun and hard to put down!

*2013-03-14*

Fun, interesting and challenging...and hard to put down!  Sometimes I decide that I'm going to play for a few minutes and the next thing I know, a whole hour is gone!  Check it out!

### 5/5 — Fun, Challenging and Addicting!

*2013-03-14*

This is a fantastic numbers game that is easy to learn but that doesn't mean it's easy to master.  There are many different levels and you try to beat the target score for each level.  It even keeps track of your best score so you can return to any level and try to better your own score.  I'm in my fifties and I love it...my kids love it (they're in their 20s)...and my friends little kids love it.  You can play it for a few minutes, a few hours or all day...really, it's addicting and fun!  You won't have more fun for a dollar...give it a try!

### 5/5 — Easy to play, diabolically diffuclt to master.

*2013-03-12*

An addicting number puzzle game to play when you are on-the-go. Once you get going you will feel compelled to best your last score. Fun chasing the leadersboards score.

### 4/5 — Great new puzzle game for Jah!

*2013-03-12*

Sharpen up your mind skill comin' get minty fresh it gon' do ya good, man. Use dem number, blood clot, it only a dollar see.

### 5/5 — Very fun!

*2013-03-07*

The rules are pretty simple, but the later puzzles are real brain benders.  It's quite unique, too.

## Frequently asked questions about subaku

### What is the main gameplay mechanic in Subaku?

In Subaku, you tap a number, which decreases its value by one. This action causes the surrounding numbers to increase their value by one, creating a chain reaction.

### How many puzzles are available in Subaku?

Subaku features one hundred distinct puzzles for players to solve and master. Additionally, there is an 'Endless Mode' for continuous gameplay.

### Is Subaku suitable for younger players?

Yes, Subaku has an age rating of 4+, making it appropriate for younger players. It is available on iPhone, iPad, and iPod.

### Does Subaku have ads?

No, Subaku does not contain advertisements. It is free to download and play.

### What is 'Endless Mode' in Subaku?

'Endless Mode' in Subaku challenges players to make matches while preventing the game board from clearing. The objective is to survive as long as possible.

### When was Subaku last updated?

The latest version of Subaku, 2.1, was last updated on April 14, 2022. The game was initially released on March 6, 2013.

### What platforms is Subaku available on?

Subaku is available on iOS devices, including iPhone, iPad, and iPod.

### What is the user rating for Subaku?

Subaku has a user rating of 4.0 stars, based on one rating. This indicates generally positive reception from its players.

## Version history (last 5 releases)

### 2.1 — 2022-04-14

Updates for newer devices.

### 2.0 — 2016-02-04

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

subaku has been remade to fit all devices!
From the smallest iPhone to the biggest iPad, subaku is here with 100 puzzles and three modes to enjoy anytime, anywhere.

### 1.4.3 — 2014-02-26

Fixes a bug that forces the game to be in Japanese.

### 1.4.2 — 2013-12-30

- Fixes unreadable puzzle selection text on iPads.

### 1.4.1 — 2013-10-12

- Fixes bug in endless mode with animations disabled when an action would end the game.
- Updated for iOS 7.
- Time Trial leaderboards now available.

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## More apps by Eric Koziol

- [rainblocks](https://appshunter.io/ios/app/rainblocks/id821898935)
- [TOUCH THE SCREEN](https://appshunter.io/ios/app/touch-the-screen/id910036586)
- [ADITL](https://appshunter.io/ios/app/aditl/id1290520944)
- [Today's Date](https://appshunter.io/ios/app/todays-date/id1626385055)

All apps by Eric Koziol: https://appshunter.io/developer/486072193

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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 2026-06-10.*