# Sudoku - Classic 9x9 Puzzle

> Classic 9x9 Sudoku puzzle game with multiple difficulty levels and helpful tools. (iPhone/iPad app by mauigo GmbH.)

- Source: https://appshunter.io/ios/app/sudoku-classic-9x9-puzzle/id882786878 (this page in markdown: same URL + `.md`)
- Developer: [mauigo GmbH](https://appshunter.io/developer/708230158)
- Category: Games, Entertainment, Board, Puzzle
- Price: Free with in-app purchases
- Rating: 3.77/5 from 22 App Store ratings · 4 written reviews indexed
- Age rating: 4+
- Requires: iOS 7.0 · 61 MB
- Languages: American English
- Released: 2014-06-03
- Data updated: 2026-11-01
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/sudoku-classic-9x9-puzzle/id882786878/reviews.md

## What is Sudoku?

Select between 4 difficulty levels while using an intuitive and beautifully designed interface and solve as many puzzles as you can! This Sudoku App is the best Sudoku Puzzle 2018 for all iOS devices! You won't need a newspaper puzzle again!

The objective is to fill a 9×9 grid with digits so that each column, each row, and each of the nine 3×3 sub-grids that compose the grid (also called "boxes", "blocks", "regions", or "sub-squares") contains all of the digits from 1 to 9. At start, the puzzle shows you a partially completed grid, which has a unique solution.

* 4 difficulty levels - (beginner sudoku, easy sudoku, medium sudoku, hard sudoku)
* 2 different input modes - number first of tap the tile first
* Take/Erase little notes onto the puzzle tiles
* Auto-save (Save / Resume functionality)
* Game Center Leaderboards to compete with all the players around the world!
* Highlighting the selected numbers on the puzzle
* Highlighted incorrect entry of digits

You would like to see additional features? No problem! Just review the game or send an email to contact@mauigo.com and let me know what I should add! Thanks!

## Key features

- 4 difficulty levels
- Two input modes
- Note-taking feature
- Auto-save functionality
- Game Center leaderboards
- Number highlighting
- Incorrect entry highlighting

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Pro Version (Remove Advertisements!) | $0.99 | one-time |


## Is Sudoku safe?

Not enough ratings yet to assess Sudoku.

## Is Sudoku legit?

Sudoku - Classic 9x9 Puzzle appears to be a legitimate app. The AppsHunter Legitimacy Score for Sudoku is 90 out of 100 points across 7 verification signals from App Store and developer data.

## Recent user reviews (4 of 4)

All indexed reviews: https://appshunter.io/ios/app/sudoku-classic-9x9-puzzle/id882786878/reviews.md

### 1/5 — Force quitting

*2018-12-13*

Rage quit on startup.

### 1/5 — Same issue from 4 years ago

*2018-10-22*

The game refuses to load when no network is detected. This game is great when on the go: bus, train, taxi. But can’t play if no network. Plenty of other sudoku apps will load. Look elsewhere.

### 3/5 — Irritated with update!!!

*2014-09-03*

App was great until new version with ads. Even after paying for add free, I still get ads when I open the app or finish a puzzle. Fix that!  I paid so I wouldn't have ads!

### 1/5 — crash when no network

*2014-08-16*

could you please fix it ASAP? no same issue in old version.

## Frequently asked questions about Sudoku

### What are the difficulty levels in Sudoku?

Sudoku offers four difficulty levels: beginner, easy, medium, and hard. This allows players of all skill levels to enjoy the game, from those new to Sudoku to experienced puzzle solvers.

### Can I take notes while playing Sudoku?

Yes, Sudoku allows you to take and erase small notes directly onto the puzzle tiles. This feature helps you keep track of potential numbers for each square.

### Does Sudoku have an auto-save feature?

Yes, Sudoku automatically saves your progress. This means you can pause your game and resume it later without losing your work.

### How does Sudoku handle incorrect entries?

Sudoku highlights incorrect entries of digits, making it easier to spot and correct mistakes. This feature aids in learning and improving your puzzle-solving accuracy.

### Can I compete with other players in Sudoku?

Yes, Sudoku features Game Center Leaderboards, allowing you to compete with players worldwide. You can track your scores and see how you rank against others.

### What devices is Sudoku compatible with?

Sudoku is designed for iOS devices, including iPhone, iPad, and iPod. It was released on June 3, 2014, and the latest version is 1.23, last updated on April 22, 2018.

### What is the age rating for Sudoku?

Sudoku has an age rating of 4+. This indicates it is suitable for children and adults alike, making it a family-friendly puzzle game.

### Does Sudoku have ads?

Based on the provided information, Sudoku does not have advertisements. It is a free game with optional in-app purchases.

## Version history (last 5 releases)

### 1.23 — 2018-04-22

minor bugfixes

### 1.22 — 2017-10-12

fixed game over bug =)

### 1.21 — 2017-10-11

iOS 11 compatible! :)

### 1.2 — 2014-10-15

iOS 11 update coming soon!

### 1.1 — 2014-08-14

You can now select from multiple background colors!
Added more puzzles!
Fixed some bugs! =)

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| --- | --- | --- | --- |
| [Chess - PuzzleRush](https://appshunter.io/ios/app/chess-puzzlerush/id6800299570) | — | Free | Games |
| [Sudoku Master : Brain Games](https://appshunter.io/ios/app/sudoku-master-brain-games/id6756326402) | 5.0 (1) | Free | Games |
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| [Sudoku Master: Brain Puzzle](https://appshunter.io/ios/app/sudoku-master-brain-puzzle/id6743094148) | 3.0 (2) | Free | Games |
| [Sudoku Master - Number Game](https://appshunter.io/ios/app/sudoku-master-number-game/id6788732111) | 5.0 (1) | Free | Games |
| [All Sudoku - 5 kinds of sudoku](https://appshunter.io/ios/app/all-sudoku-5-kinds-of-sudoku/id1539312289) | 4.8 (23) | Free | Games |

## More apps by mauigo GmbH

- [Shape Sudoku Game - Download and Play Fun Puzzles as in the Daily Mail, from Beginner to Fiendish](https://appshunter.io/ios/app/shape-sudoku-game-download-and-play-fun-puzzles-as-in-the-daily-mail-from-beginner-to-fiendish/id893128000)
- [Sudoku - Classic 9x9 Game](https://appshunter.io/ios/app/sudoku-classic-9x9-game/id1378852435)
- [Balcation: Offline Games](https://appshunter.io/ios/app/balcation-offline-games/id6821603703)

All apps by mauigo GmbH: https://appshunter.io/developer/708230158

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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 2026-11-01.*