# Mathrax - Sudoku and Maths

> Logic puzzle game with number placement based on mathematical and parity rules. (iPhone/iPad app by Stanley Lam.)

- Source: https://appshunter.io/ios/app/mathrax-sudoku-and-maths/id645221113 (this page in markdown: same URL + `.md`)
- Developer: [Stanley Lam](https://appshunter.io/developer/453164363)
- Category: Games, Board, Puzzle
- Price: Free with in-app purchases
- Rating: 5.00/5 from 2 App Store ratings · 1 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 12 MB
- Languages: English, Japanese
- Released: 2013-05-13
- Data updated: 2026-07-04
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/mathrax-sudoku-and-maths/id645221113/reviews.md

## What is Mathrax?

Mathrax is a logic puzzle. The goal is to fill in each cell with numbers from 1 to N, where N is the size of the puzzle's side. No number may appear twice in any row or column. Circles with additional conditions may appear on intersections of lines inside the grid.
- A number and a sign of mathematical operation (addition, subtraction, multiplication, division) - a number is a result of an operation execution with numbers in diagonally adjacent cells.
- A letter "E" ("even") - all numbers in four cells are even.
- A letter "O" ("odd") - all numbers in four cells are odd.

**** Mathrax features ****

# Content
- 6 different sizes of board
- 5 difficulty levels
- more than 500 levels

# Features
- Highlight wrong number automatically
- Autosave the process of unfinished levels
- Record best completion time for each level

# Challenge
- Game Center Achievements
- Try to complete as many levels as possible

## Key features

- Number placement logic puzzles
- Mathematical operation conditions
- Parity (even/odd) conditions
- Multiple board sizes and difficulty levels
- Over 500 unique levels
- Automatic wrong number highlighting
- Autosave unfinished levels
- Best completion time recording

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Upgrade to Full Version | $0.99 | one-time |


## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/mathrax-sudoku-and-maths/id645221113/reviews.md

### 5/5 — Once you get the hang of

*2017-03-10*

Enjoy

## Frequently asked questions about Mathrax

### What is Mathrax?

Mathrax is a logic puzzle game where players fill grids with numbers according to mathematical and parity rules. It offers over 500 levels across various sizes and difficulties.

### Does Mathrax have ads?

Yes, Mathrax contains advertisements. It is a free-to-play game with optional in-app purchases.

### What are the different game modes in Mathrax?

Mathrax features a single-player logic puzzle mode with over 500 levels. It includes Game Center Achievements to challenge players to complete as many levels as possible.

### Can I play Mathrax offline?

The provided data does not specify offline play capabilities for Mathrax. However, logic puzzle games often function without an internet connection.

### What devices support Mathrax?

Mathrax is supported on iPhone, iPad, and iPod devices. It is rated for ages 4 and up.

### How often is Mathrax updated?

Mathrax was last updated on May 12, 2026, with version 1.0.33. The release date was May 13, 2013.

### What makes Mathrax different from Sudoku?

While both are number grid puzzles, Mathrax includes additional conditions based on mathematical operations and parity (even/odd) in specific cells, going beyond standard Sudoku rules.

### Is Mathrax suitable for children?

Yes, Mathrax has an age rating of 4+, making it suitable for children. The game focuses on logic and number skills.

## Version history (last 5 releases)

### 1.0.33 — 2026-05-12

- Bug fixes and performance improvements

### 1.0.31 — 2025-12-17

- Bug fixes and performance improvements

### 1.0.30 — 2025-07-07

- Bug fixes and performance improvements

### 1.0.29 — 2024-12-24

- Bug fixes and performance improvements

### 1.0.28 — 2024-01-22

- Bug fixes and performance improvements

## Apps similar to Mathrax

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Kakuso Challenge](https://appshunter.io/ios/app/kakuso-challenge/id1485845940) | — | Free | Games |
| [Fox board](https://appshunter.io/ios/app/fox-board/id6480063184) | 5.0 (1) | Free | Games |
| [ekis puzzle](https://appshunter.io/ios/app/ekis-puzzle/id1621115009) | — | Free | Games |
| [To Zero!](https://appshunter.io/ios/app/to-zero/id6467232855) | — | Free | Games |
| [Zubrick](https://appshunter.io/ios/app/zubrick/id6550913874) | 5.0 (2) | Free | Games |
| [Color Kakuro](https://appshunter.io/ios/app/color-kakuro/id977635675) | 2.8 (4) | Free | Games |

## More apps by Stanley Lam

- [Sudoku Revolution](https://appshunter.io/ios/app/sudoku-revolution/id546630587)
- [Islands in the Stream](https://appshunter.io/ios/app/islands-in-the-stream/id571234122)
- [Samurai Sudoku](https://appshunter.io/ios/app/samurai-sudoku/id594421598)
- [Number Join - Connect numbers](https://appshunter.io/ios/app/number-join-connect-numbers/id603551538)
- [Number Join - Connect Diagonal](https://appshunter.io/ios/app/number-join-connect-diagonal/id611072465)
- [Line Sweeper](https://appshunter.io/ios/app/line-sweeper/id614449716)

All apps by Stanley Lam: https://appshunter.io/developer/453164363

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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 2026-07-04.*