# ⋆Sudoku — Classic Sudoku Logic Puzzles

> Classic Sudoku logic puzzles with advanced learning hints and daily challenges. (iPhone/iPad app by Brainium Studios LLC.)

- Source: https://appshunter.io/ios/app/sudoku/id418044512 (this page in markdown: same URL + `.md`)
- Developer: [Brainium Studios LLC](https://appshunter.io/developer/300891405)
- Category: Games, Entertainment, Board, Puzzle
- Price: Free with in-app purchases
- Rating: 4.70/5 from 161,022 App Store ratings · 776 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 316 MB
- Languages: Korean, Dutch, Danish, German (Germany), Russian, Norwegian Bokmål, Swedish, European Spanish, American English, Italian and 7 more
- Released: 2011-11-02
- Data updated: 2026-08-28
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/sudoku/id418044512/reviews.md

## What is ⋆Sudoku?

Sudoku by Brainium has updated the classic Sudoku puzzle game you know and love, with a clean, modern design, calming backdrops, and intuitive controls. With endless number puzzles and five levels of difficulty, our Sudoku is perfect for players of all skill levels. Whether you’re in the mood for a quick game to help you relax, or an expert level logic challenge to train your brain, there’s a board for you. 

Brainium Sudoku also features the first and best smart hint system available. It goes beyond simply giving you the answers. Instead, it helps you learn and improve your skills by teaching you “why” the answer is what it is.

With every puzzle, our “Hint” button provides the techniques you need to make progress even when it seems like your path is blocked. The instructions are easy to understand, unique for every puzzle, and presented with easy to follow, helpful animations and colorful visuals. This feature will improve your Sudoku skills whether you’re a first-time player or a seasoned expert. It’s the perfect companion for anyone looking to take their number game or logic puzzle skills to the next level. 

Enjoy a clear, easy to read, and customizable Sudoku board with visual guides that make reading the board and figuring out where to place your next numbers a 
breeze.

Our input system is designed to make entering numbers and notes simple, and our user-friendly scoring system makes it easy to compete with yourself or friends.

Starting and keeping a daily habit of mental exercise is easy by playing Sudoku’s Daily Puzzles, which are sure to keep your mind sharp and at ease. Track your progress with onboard statistics and unlock fun achievements along the way.

Brainium’s Classic Sudoku Features:

• The world’s most advanced Sudoku learning tool and hint system
• Hints that teach you the logic behind the answer
• Five perfectly balanced difficulty levels from beginner to expert
• Daily Puzzle Challenges - complete them to earn points and gold checkmarks
• Two beautiful grid styles
• Nine relaxing backdrops
• Light or dark grid fonts with adjustable size
• Auto Light/Dark mode adjusts the theme based on your device settings
• Unlimited collection of brain training logic puzzles
• Game Statistics to track progress
• Auto-Fill Notes option
• Auto-Clear Notes option
• Auto-Check Errors option
• Number Painting option allows you to rapidly fill open squares with a selected number or note
• Universal App looks great on iPhone and iPad
• Global and friend leader boards
• Portrait and landscape play options
• Right or left-handed option in landscape
• iPad keyboard compatible

We hope Sudoku by Brainium brings you endless fun, relaxation, and a challenge for your mind. 

More Fun & Free Logic and Classic Card Games from Brainium:

• Solitaire
• Mahjong
• Spider Solitaire
• FreeCell
• Pyramid
• Blackjack

Like us on Facebook
http://www.facebook.com/BrainiumStudios

Follow us on Twitter
@BrainiumStudios

Visit us on the web
https://www.Brainium.com/

## Key features

- Smart hint system teaches logic
- Five difficulty levels
- Daily puzzle challenges
- Customizable board and themes
- Progress tracking and statistics
- Auto-fill and auto-check options

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Remove Ads | $11.99 | one-time |


## What do users think of ⋆Sudoku?

Overall sentiment: neutral

**Pros**

- 🚀 Challenging but not too challenging
- 👍 Great for learning advanced techniques
- 👍 Helpful hints that teach strategies
- 👍 Relaxing and soothing game
- 👍 Customizable themes and settings
- 👍 Great for exercising the brain

**Cons**

- 🐛 Frequent crashes and glitches
- 🔍 Difficult to see numbers and patterns
- 🔍 Inconsistent difficulty levels
- 🔍 Overly distracting UI elements
- 🔍 Too many intrusive ads
- 🔍 Inability to disable ads without paying

**Commonly reported bugs**

- Puzzle completion status not updating correctly
- Floating number feature not working as expected
- Scores not displaying properly on leaderboard
- Game freezing or crashing on certain devices
- Inability to play music in the background

**Most requested features**

- Option to disable auto-check for errors
- Ability to customize number colors and backgrounds
- More granular difficulty settings between Hard and Expert
- Ability to access past daily puzzles
- Family sharing for ad-free version
- Clearer explanation of scoring system

## Recent user reviews (10 of 776)

All indexed reviews: https://appshunter.io/ios/app/sudoku/id418044512/reviews.md

### 1/5 — Ads block game

*2026-08-23, version 4.5.28*

I try to start a game, but an ad pops up telling me I must update before playing. The ad takes you to a different soduko game by a different developer. I waited 4 minutes but still couldn’t close the ad. You need to get rid of competitor ads like this.

### 1/5 — Ads Aplenty

*2026-08-18, version 4.5.28*

Ads for games are much too long and no way to exit after a few seconds... not worth it

### 1/5 — Difficulty level - Ha!

*2026-08-17, version 4.5.28*

Need to redo how they calculate difficulty level. Most are way harder than they say.

### 1/5 — Ad roadblock

*2026-08-14, version 4.5.28*

Can’t get into the game! Full page ads that have no x or decline option. Only “open store”.

### 5/5 — Better than most

*2026-08-12, version 4.5.28*

I find I like the options and clarity on this game.  At least the adds don’t come until you finish the game.

### 3/5 — Very slow

*2026-08-12, version 4.5.28*

It operates very slowly

### 1/5 — Ads Killed this Great App!

*2026-08-08, version 4.5.28*

Unbelievably annoying apps constantly making me waste time on what was a very good app but now is so frustrating as to be unplayable.

### 5/5 — GREAT GAME

*2026-08-08, version 4.5.28*

Played for years, always challenging andsatisfying

### 5/5 — I love this sudoku.

*2026-08-06, version 4.5.28*

This game actually allows you to play without a lot of noise and interruption.

### 5/5 — Great Game

*2026-07-29, version 4.5.28*

Middle of game hijacked interruptions.
I understand this wonderful game must be paid for with commercials. I’m OK with that if the advertising will continue before and after each game. I will not play/endorse this game if the current policy continues. I have bought several products from the commercials.
I have accumulated 2Kk+ points and really like this game.
I will use another version of Sudoku if this continues.

Today, 07.29.2026, my tablet recommended not clicking on popups here to stay safe.

Maybe it’s my ISP?

 Best Regards,

ZDaveC

## Frequently asked questions about ⋆Sudoku

### What is this app?

This app provides a classic Sudoku puzzle experience with a clean, modern design. It offers endless number puzzles across five difficulty levels, a smart hint system that explains the logic behind solutions, and daily challenges to keep your mind engaged. The app aims to provide fun, relaxation, and a mental challenge for players of all skill levels.

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

Key features include the world's most advanced Sudoku learning tool and hint system that teaches logic, five balanced difficulty levels, daily puzzle challenges, customizable grid styles and backdrops, and progress tracking with statistics. It also offers convenient input systems like auto-fill notes and auto-check errors.

### Is this app free to download and play?

Yes, the app is free to download and play. It offers a free experience with in-app purchases, which may include additional features or ways to enhance gameplay. The core Sudoku puzzles and learning tools are available without charge.

### What devices is this app compatible with?

This is a universal app designed to look great on both iPhone and iPad devices. It supports both portrait and landscape play options, with additional customization for left-handed players in landscape mode. It is also iPad keyboard compatible.

### How does the hint system work?

The smart hint system goes beyond simply providing answers. It helps you learn and improve your Sudoku skills by teaching you the specific logic and techniques needed to solve each puzzle. Hints are unique for every puzzle and presented with easy-to-follow animations and visuals.

## Version history (last 5 releases)

### 4.5.28 — 2026-06-29

Checkout the new updates from our team and thanks for playing!

### 4.5.22 — 2026-03-25

Checkout the new updates from our team and thanks for playing!

### 4.5.9 — 2025-12-23

Checkout the new updates from our team and thanks for playing!

### 4.4.65 — 2025-12-03

Here's an update with fixes to improve your game experience!

### 4.4.63 — 2025-11-20

Checkout the new updates from our team and thanks for playing!

## Apps similar to ⋆Sudoku

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Sudoku - Brain Puzzle Games](https://appshunter.io/ios/app/sudoku-brain-puzzle-games/id1442749804) | 4.8 (305,807) | Free | Games |
| [Sudoku.com - Number Games](https://appshunter.io/ios/app/sudokucom-number-games/id1193508329) | 4.8 (1,847,599) | Free | Games |
| [Woodoku - Wood Block Puzzles](https://appshunter.io/ios/app/woodoku-wood-block-puzzles/id1496354836) | 4.7 (659,998) | Free | Games |
| [Killer Sudoku - Brain Games](https://appshunter.io/ios/app/killer-sudoku-brain-games/id1532397340) | 4.7 (26,573) | Free | Games |
| [Block Puzzle Jewel :Gem Legend](https://appshunter.io/ios/app/block-puzzle-jewel-gem-legend/id1561719761) | 4.8 (32,865) | Free | Games |
| [Sudoku· Classic Puzzle Games](https://appshunter.io/ios/app/sudoku-classic-puzzle-games/id1409781798) | 4.7 (63,544) | Free | Games |

## More apps by Brainium Studios LLC

- [Jumbline 2+ for iPad](https://appshunter.io/ios/app/jumbline-2-plus-for-ipad/id364900547)
- [Jumbline 2 for iPad](https://appshunter.io/ios/app/jumbline-2-for-ipad/id374370928)
- [Jumbline 2+](https://appshunter.io/ios/app/jumbline-2-plus/id384197252)
- [Jumbline 2](https://appshunter.io/ios/app/jumbline-2/id384200512)
- [⋆Word Search+](https://appshunter.io/ios/app/word-search-plus/id398081649)
- [⋆Word Search](https://appshunter.io/ios/app/word-search/id400793434)

All apps by Brainium Studios LLC: https://appshunter.io/developer/300891405

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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 2026-08-28.*