# Sudoku - Classic Sudoku Games — Sudoku (Soduku) Brain Puzzles

> Free, classic Sudoku brain puzzle game with multiple difficulty levels and helpful tools. (iPhone/iPad app by 勇 殷.)

- Source: https://appshunter.io/ios/app/sudoku-classic-sudoku-games/id1242854141 (this page in markdown: same URL + `.md`)
- Developer: [勇 殷](https://appshunter.io/developer/1166483552)
- Category: Games, Board, Puzzle
- Price: Free
- Rating: 4.80/5 from 20,427 App Store ratings · 867 written reviews indexed
- Age rating: 9+
- Requires: iOS 13 · 61 MB
- Languages: American English, Chinese (Simplified, China)
- Released: 2017-06-01
- Data updated: 2026-08-29
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/sudoku-classic-sudoku-games/id1242854141/reviews.md

## What is Sudoku?

The most intuitive, polished, and enjoyable Sudoku game on the App Store! Completely free with an endless supply of Sudoku puzzles.

Choose any level you like. Our Sudoku has some features that make the game easier for you: hints, auto-check, and duplicates highlight. You can use them or complete the challenge without help – it's up to you! 

Features:
- Endless, Free Sudoku puzzles
- 4 levels of difficulty: Simple, Medium, Hard, Master
- Hints and Notes

Train your brain with Sudoku anywhere, anytime!

## Key features

- Endless free Sudoku puzzles
- Four difficulty levels
- Hints
- Auto-check
- Duplicates highlight
- Notes

## What do users think of Sudoku?

Overall sentiment: positive

**Pros**

- 👍 User-friendly interface
- 🚀 Smooth gameplay
- 💡 Variety of difficulty levels
- 🔒 No intrusive ads
- 👍 Relaxing and challenging
- 👍 Great for beginners and experts

**Cons**

- 🐛 Disappearing numbers issue
- 🐛 Glitch with bottom left number
- 🔋 Bright screen, no dark mode
- 🐛 Inconsistent number registration
- 🐛 Game freezing on continue screen
- 💡 Lack of customization options

**Commonly reported bugs**

- Disappearing numbers
- Inability to select bottom left number
- Game freezing on continue screen
- Inconsistent number registration

**Most requested features**

- Option to turn off timer
- Ability to erase/remove notes
- Automatic removal of used numbers
- Landscape mode support
- Leaderboards and stats tracking
- More challenging difficulty levels

## Recent user reviews (10 of 867)

All indexed reviews: https://appshunter.io/ios/app/sudoku-classic-sudoku-games/id1242854141/reviews.md

### 3/5 — Why are there so many ads?

*2026-08-24, version 1.2.7*

The ads are unbearable. They are long and multiple in between games. No way to opt out or pay to avoid ads.

### 3/5 — Long ads

*2026-08-23, version 1.2.7*

Long advertisements

### 1/5 — Ad on this Sudoku

*2026-08-20, version 1.2.7*

Completed a game & as usual went to an ad. The ad page was a white blank page with “ click to continue” in upper corner. This opened to a pornograhic site.  I play game to exercise brain, not porn.

### 1/5 — too many ads

*2026-08-18, version 1.2.7*

really enjoyed this app but now it’s one ad after another and i cannot click through and play how i like, very disappointed

### 5/5 — Cool game

*2026-08-17, version 1.2.7*

Love this game!  Easy to play

### 1/5 — Good but…

*2026-08-14, version 1.2.7*

I ended up deleting this app due to getting adverts that claimed y phone was a security risk, it’s not.

### 4/5 — Pretty good but adverts freeze the game

*2026-08-14, version 1.2.7*

The game works well, but adverts can’t be watched and gone past, they just freeze the game, you have to close the game and restart it every time a n advert plays

### 1/5 — Horrible

*2026-08-12, version 1.2.7*

Too many ads - app makes you watch an ad before each new game starts

### 5/5 — Fun

*2026-08-10, version 1.2.7*

A lot of fun. Happy I don’t get it cut off after 3 mistakes

### 5/5 — Challenging

*2026-07-30, version 1.2.7*

Fun, challenging

## Frequently asked questions about Sudoku

### What is this app?

This app is a classic Sudoku puzzle game designed to be intuitive and enjoyable. It offers an endless supply of free Sudoku puzzles for users to play and train their brains.

### What are the key features of this Sudoku game?

Key features include an endless supply of free Sudoku puzzles, four difficulty levels (Simple, Medium, Hard, Master), hints, an auto-check function, and the ability to highlight duplicates. Users can also take notes within the puzzles.

### Is this app free to play?

Yes, the app is completely free to play and offers an endless supply of Sudoku puzzles without any cost. It is supported by advertisements.

### What are the different difficulty levels available?

The app offers four distinct levels of difficulty to cater to all players: Simple, Medium, Hard, and Master. This allows users to choose a challenge that suits their skill level.

### Who is this app for?

This app is for anyone who enjoys logic puzzles and wants to exercise their brain. It's suitable for both beginners looking for a gentle introduction to Sudoku and experienced players seeking a challenge.

## Version history (last 5 releases)

### 1.2.7 — 2026-01-08

1.Game performance improvement.
2.Add more challenging puzzles in master.

### 1.2.6 — 2023-12-26

1.Game performance improvement.
2.Add more challenging puzzles in master.

### 1.2.5 — 2023-04-01

1.Game performance improvement.
2.Add more challenging puzzles in master.

### 1.2.3 — 2022-10-24

1.Minor bugs fixed.
2.Game performance improvement.
3.The completed number will be auto-hidden.

### 1.2.2 — 2021-04-07

1.Game performance improvement.
2.Support AppTrackingTransparency.

## Apps similar to Sudoku

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Sudoku - Brain Puzzle Games](https://appshunter.io/ios/app/sudoku-brain-puzzle-games/id1442749804) | 4.8 (306,510) | Free | Games |
| [Sudoku Puzzle - Brain Games](https://appshunter.io/ios/app/sudoku-puzzle-brain-games/id1492978794) | 4.9 (88,339) | Free | Games |
| [Sudoku.com - Number Games](https://appshunter.io/ios/app/sudokucom-number-games/id1193508329) | 4.8 (1,847,599) | Free | Games |
| [Killer Sudoku - Brain Games](https://appshunter.io/ios/app/killer-sudoku-brain-games/id1532397340) | 4.7 (26,573) | Free | Games |
| [Wood Block Puzzle Games](https://appshunter.io/ios/app/wood-block-puzzle-games/id1466197423) | 4.7 (429,515) | Free | Games |
| [Wood Block Puzzle:Logic Master](https://appshunter.io/ios/app/wood-block-puzzlelogic-master/id1524613492) | 4.7 (61,536) | Free | Games |

## More apps by 勇 殷

- [Block Puzzle Classic.](https://appshunter.io/ios/app/block-puzzle-classic/id1170382161)
- [Onet Connect - Pet link Puzzle](https://appshunter.io/ios/app/onet-connect-pet-link-puzzle/id1178416452)
- [Block! Brick Crush-Free music pop quiz](https://appshunter.io/ios/app/block-brick-crush-free-music-pop-quiz/id1178425177)
- [BBTAN-Free Block Puzzle Games](https://appshunter.io/ios/app/bbtan-free-block-puzzle-games/id1190854150)
- [Six Tower - Hexa Block Puzzle Games](https://appshunter.io/ios/app/six-tower-hexa-block-puzzle-games/id1210715014)

All apps by 勇 殷: https://appshunter.io/developer/1166483552

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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 2026-08-29.*