# Sudoku ・Classic Brain Puzzle — No WiFi needed. All levels

> Free classic Sudoku number puzzle game for brain training and logic improvement. (iPhone/iPad app by DigitAlchemy LLC.)

- Source: https://appshunter.io/ios/app/sudoku-classic-brain-puzzle/id6444478133 (this page in markdown: same URL + `.md`)
- Developer: [DigitAlchemy LLC](https://appshunter.io/developer/376971628)
- Category: Games, Entertainment, Board, Puzzle
- Price: Free with in-app purchases
- Rating: 4.80/5 from 72 App Store ratings · 20 written reviews indexed
- Age rating: 4+
- Requires: iOS 15.0 · 217 MB
- Languages: American English, Dutch, French (France), German (Germany), Indonesian, Italian, Japanese, Korean, Malay, Polish and 9 more
- Released: 2022-11-26
- Data updated: 2026-08-26
- Monetization: ad-supported
- User reviews in markdown: https://appshunter.io/ios/app/sudoku-classic-brain-puzzle/id6444478133/reviews.md

## What is Sudoku ・Classic Brain Puzzle?

Sudoku Offline — Logic Puzzles for Focus, Reasoning, and Daily Brain Training

Sudoku Offline is a logic puzzle app designed for people who enjoy thoughtful challenges, mental exercise, and screen time that feels productive. Solve classic number puzzles anywhere, strengthen cognitive skills, and build a simple daily habit that keeps your mind engaged—no internet connection required.

Whether you're looking for a relaxing activity during a commute, a daily logic challenge, or a way to improve concentration and problem-solving skills, Sudoku Offline provides a clean and distraction-free experience built around one of the world's most popular puzzle formats.

What You Can Do

• Solve more than 1,000 carefully crafted puzzles
• Choose a difficulty level that matches your experience
• Play completely offline while traveling or commuting
• Use notes, hints, and smart solving tools when needed
• Track progress and monitor long-term improvement
• Resume puzzles automatically with auto-save support
Designed for Mental Fitness

Sudoku is a logic-based puzzle that encourages structured thinking, pattern recognition, and attention to detail.

Many players use Sudoku Offline as part of a daily routine to:

• Improve focus and concentration
• Practice logical reasoning
• Strengthen memory and information processing
• Develop problem-solving skills
• Maintain mental sharpness through regular practice
• Enjoy a calm and rewarding challenge without time pressure

Unlike fast-paced games that rely on reactions, sudoku rewards careful thinking, planning, and consistent progress.

Flexible Difficulty for Every Skill Level

Whether you're learning the basics or looking for advanced challenges, Sudoku Offline adapts to your experience level.

Choose from:

• Beginner-friendly puzzles for learning and practice
• Intermediate challenges for daily play
• Advanced puzzles that require deeper reasoning
• Expert-level grids designed for experienced solvers

The gradual difficulty progression supports long-term skill development and helps players improve naturally over time.

Built for Everyday Use

Sudoku Offline is designed to fit into real life.

Use it during:

• Daily commutes
• Flights and travel
• Short breaks at work
• Morning brain-training routines
• Evening relaxation sessions
• Offline moments without Wi-Fi or mobile data

A clean interface, intuitive controls, and distraction-free design make it easy to focus entirely on the puzzle.

Helpful Features

• Offline gameplay
• Notes and candidate tracking
• Smart hints
• Undo support
• Duplicate highlighting
• Automatic progress saving
• Detailed statistics and performance tracking
• Optimized for both phones and tablets

Who It's For

Sudoku Offline is popular among:

• Puzzle enthusiasts
• Fans of logic and reasoning games
• Adults interested in brain training
• Students looking to improve concentration
• Travelers seeking offline entertainment
• Anyone who enjoys thoughtful, skill-based challenges

Download Sudoku Offline and turn spare moments into opportunities for focus, learning, and mental exercise through classic logic puzzles.

## Key features

- Classic 9x9 logic puzzles
- Multiple difficulty levels
- Hints and progress tracking
- Offline play
- Customizable themes
- Paper-style layout

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Sudoku Premium – No Ads | $4.99 | one-time |


## Recent user reviews (10 of 20)

All indexed reviews: https://appshunter.io/ios/app/sudoku-classic-brain-puzzle/id6444478133/reviews.md

### 5/5 — 実に面白い

*2026-08-11*

ナンプレ数独は数々あるが、これは面白くてやり易さ感がある。

### 5/5 — Mister

*2026-08-09*

I love sudoku more than any other game.  As you can see, I am not an expert but I have the stubbornness in me to keep playing until I win.  Thank you for this wonderful game.

**Developer response:** Thank you very much for playing Sudoku and sharing feedback. Happy to hear you are enjoying the game!
We have planned it and are already working on some educational features for Sudoku - there will be better ways to learn and enjoy the game with upcoming updates.
Hope you're having a great day, and hope you give the feature a try when it releases.

### 5/5 — Great Challenge

*2026-08-07*

I love this version

### 5/5 — Super Sudoku ohne Werbung

*2026-07-31*

Super

### 5/5 — ナンプレアプリ  大変素晴らしい内容てす。

*2026-07-30*

良いアプリです、日替わりチャレンジが有れば星5個になります。検討よろしくお願いいたします。

**Developer response:** （Google翻訳）

数独をプレイしていただき、フィードバックをお寄せいただき、本当にありがとうございます。ゲームを楽しんでいただけているようで、大変嬉しく思います。デイリーチャレンジについてですが、何か特別なもの（例えば16×16の数独など）をご希望ですか？それとも、定番の数独を全員が同じパズルでプレイできる方が良いでしょうか？素敵な一日をお過ごしください。パズルを楽しんでくださいね！ ナディアより

### 5/5 — 좋아요

*2026-07-27*

광고 생기면 가차 없이 삭제할게요 전에는 메모한 숫자 눌러도 표시가 안 되어서 보기가 불편했는데, 이제는 누르면 같은 숫자가 떠서 보기 편해요. 광고 없어서 정말 좋고요

**Developer response:** (구글 번역)

스도쿠를 플레이해 주시고 의견을 공유해 주셔서 감사합니다.

메모 강조 표시 기능이 유용하다고 말씀해 주셔서 기쁩니다. 설정에서 "메모 강조 표시" 옵션을 선택하시면 되며, 필요하지 않으시면 언제든지 끌 수 있습니다.

좋은 하루 보내시고, 문제 풀이에 행운을 빌어요!

진심으로 감사드립니다, 나디아

### 4/5 — 広告を無くせ

*2026-07-18*

広告が出る

**Developer response:** （Google翻訳）

こんにちは！

アプリを無料で提供し、今後の開発を支援するために広告を使用しています。数独には、広告なしバージョンにアップグレードできる有料オプションもあります。メインページにある王冠アイコンをタップすると、このオプションを見つけることができます（これは1回限りの購入です）。

広告は常に何らかの妥協を伴うものであることは理解していますが、広告によってアプリの利用が妨げられることは決して望んでいません。
この件に関するご報告、大変感謝しております。広告の影響を特に受けている機能やページはありますでしょうか？広告に関する詳細情報がございましたら、こちら、またはsudoku@digitalchemy.usまでお知らせください。

よろしくお願いいたします、ナディア

### 5/5 — Балдеж

*2026-07-08*

Все отлично работает.

### 5/5 — Sudoku

*2026-06-20*

Ótima

### 5/5 — ナンプレアプリ  大変素晴らしい内容てす。

*2026-05-27*

良いアプリです、日替わりチャレンジが有れば星5個になります。検討よろしくお願いいたします。

**Developer response:** （Google翻訳）

こんにちは、あずきのちちさん！

ご意見をいただき誠にありがとうございます！

私たちは常にアプリを改善する方法を模索しており、あなたのアイデアは本当に興味深いです。毎日のチャレンジ モードは私たち自身も検討しているものです。
ご提案に感謝いたします。今後のアップデートで検討できるよう、開発者に転送させていただきます。
素晴らしい一日をお過ごしください！

よろしくお願いいたします、ナディア

## Frequently asked questions about Sudoku ・Classic Brain Puzzle

### Does Sudoku have ads?

Yes, Sudoku: Classic Sudoku Puzzle⋆ contains advertisements.

### What is the rating for Sudoku?

Sudoku: Classic Sudoku Puzzle⋆ is rated 4.8 stars based on 31 ratings.

### Can I play Sudoku offline?

Yes, you can train your brain with Sudoku: Classic Sudoku Puzzle⋆ anywhere as no internet connection is required for offline play.

### What are the difficulty levels in Sudoku?

Sudoku: Classic Sudoku Puzzle⋆ offers multiple difficulty levels, ranging from Easy to Extreme, allowing players to choose challenges that suit their skill level.

### What devices support Sudoku?

Sudoku: Classic Sudoku Puzzle⋆ is supported on iPhone, iPad, and iPod.

### How often is Sudoku updated?

The latest version of Sudoku: Classic Sudoku Puzzle⋆ is 2.1.17, last updated on February 19, 2026.

### What age rating does Sudoku have?

Sudoku: Classic Sudoku Puzzle⋆ has an age rating of 4+.

### Does Sudoku offer hints?

Yes, Sudoku: Classic Sudoku Puzzle⋆ provides smart hints to help users solve difficult spots and learn better strategies.

## Version history (last 5 releases)

### 2.17.0 — 2026-07-24

– Fixed minor issues reported by users.
– Please send us your feedback!

### 2.16.0 — 2026-07-09

– Fixed minor issues reported by users.
– Please send us your feedback!

### 2.15.2 — 2026-06-18

– Save time on repetitive taps! Let the game autofill the remaining cells for you
– Fixed minor issues reported by users.
– Please send us your feedback!

### 2.15.1 — 2026-06-15

– Save time on repetitive taps! Let the game autofill the remaining cells for you
– Fixed minor issues reported by users.
– Please send us your feedback!

### 2.15.0 — 2026-06-05

– Save time on repetitive taps! Let the game autofill the remaining cells for you
– Fixed minor issues reported by users.
– Please send us your feedback!

## Apps similar to Sudoku ・Classic Brain Puzzle

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Sudoku.com - Number Games](https://appshunter.io/ios/app/sudokucom-number-games/id1193508329) | 4.8 (1,847,599) | Free | Games |
| [Sudoku - Brain Puzzle Games](https://appshunter.io/ios/app/sudoku-brain-puzzle-games/id1442749804) | 4.8 (305,807) | Free | Games |
| [Sudoku· Classic Puzzle Games](https://appshunter.io/ios/app/sudoku-classic-puzzle-games/id1409781798) | 4.7 (63,544) | Free | Games |
| [Sudoku Master - Number Games](https://appshunter.io/ios/app/sudoku-master-number-games/id1467568266) | 4.7 (484) | Free | Games |
| [Sudoku Joy: Number Master Game](https://appshunter.io/ios/app/sudoku-joy-number-master-game/id1460985516) | 4.9 (728) | Free | Games |
| [Numpuz: Number Puzzle Games](https://appshunter.io/ios/app/numpuz-number-puzzle-games/id1340841589) | 4.8 (105,194) | Free | Games |

## More apps by DigitAlchemy LLC

- [Fraction Calculator PRO #1](https://appshunter.io/ios/app/fraction-calculator-pro-1/id504494723)
- [Calculator Plus #1](https://appshunter.io/ios/app/calculator-plus-1/id576156235)
- [Fraction Calculator Plus #1](https://appshunter.io/ios/app/fraction-calculator-plus-1/id580778301)
- [Calculator Plus - PRO](https://appshunter.io/ios/app/calculator-plus-pro/id978091416)
- [Currency Converter Plus Live](https://appshunter.io/ios/app/currency-converter-plus-live/id1317641473)
- [MultiTimer: Stopwatch + Timer](https://appshunter.io/ios/app/multitimer-stopwatch-plus-timer/id1435226668)

All apps by DigitAlchemy LLC: https://appshunter.io/developer/376971628

## Related topics

[fscb](https://appshunter.io/ios/topics/fscb) · [sudoku classic brain puzzle](https://appshunter.io/ios/topics/sudoku-classic-brain-puzzle)

---

*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 2026-08-26.*