# ∞ Sudoku — Ad-Free Logic Puzzle Game

> Ad-free, offline Sudoku puzzle game with a minimalist design and beautiful fonts. (iPhone/iPad app by Yusuke Sugamiya.)

- Source: https://appshunter.io/ios/app/sudoku/id6473160292 (this page in markdown: same URL + `.md`)
- Developer: [Yusuke Sugamiya](https://appshunter.io/developer/1527567240)
- Category: Games, Education, Casual, Puzzle
- Price: Free with in-app purchases
- Rating: 5.00/5 from 3 App Store ratings · 28 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.0 · 10 MB
- Languages: Czech, Dutch, English, French, German, Hungarian, Italian, Japanese, Korean, Russian and 1 more
- Released: 2023-12-22
- Data updated: 2026-08-11
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/sudoku/id6473160292/reviews.md

## What is ∞ Sudoku?

This is a completely ad-free Sudoku puzzle game app that you can play endlessly offline.

With a simple and lightweight design that eliminates all unnecessary elements, the app downloads in an instant. I’ve stripped away everything extraneous like ad SDKs and game engines.

I’ve focused on smooth operation, high-quality puzzles, and the seamless performance that only a native app can offer. I’ve also included many historically renowned, beautiful fonts. You might not usually pay attention, but I invite you to appreciate the beauty in the shapes of the numbers themselves.

Whether you want to take your time pondering difficult puzzles, race against the clock with easier ones, or simply relax by watching the cheat solve them for you—the choice is yours. From beginners to advanced players, you can enjoy the game in your own style.

EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://app.dnpp.org/unp/en/privacy

## Key features

- Ad-free experience
- Offline play
- Endless puzzles
- Minimalist design
- High-quality puzzles
- Beautiful typography

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Premium | $1.99 | per month |

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| Lifetime | $9.99 | one-time |


## Recent user reviews (10 of 28)

All indexed reviews: https://appshunter.io/ios/app/sudoku/id6473160292/reviews.md

### 5/5 — Love it

*2026-07-24, version 2.4.0*

So good

### 3/5 — Keyboard Still Not Working

*2025-12-07, version 2.4.0*

For me, any key pressed makes the “invalid key” sound, and nothing happens.  I tried tabbing and clicking to change the focus.   My keyboard is attached though a KVM switch.

### 2/5 — 広告なくて操作性も良い

*2025-10-15, version 2.4.0*

ただ課金しないと難しい難易度を解けない。
易しいモードでは何問かやったら飽きて終わる。
というかもう飽きて終わりました。

### 5/5 — hello

*2025-05-08, version 2.3.0*

very good, just wish that you could use your keyboard to type and remove some letters instead of the mouse pad all the time - like the different levels and all the options which are available

### 5/5 — 最高です！

*2025-04-29, version 2.3.0*

色んなナンプレアプリ漁りましたが、これだけは私が求めてた全ての条件が揃ってると感じます！広告無い、日本語対応、シンプルでとてもやりやすいです！

### 2/5 — how do you get out of beginner mode??

*2025-03-31, version 2.3.0*

tired of these easy pz puzzles

### 1/5 — 課金してみたけど

*2025-03-30, version 2.3.0*

・元から入っている数字が薄いグレーで非常に見辛い。
どの配色にしても薄く、見落としがち。

・数字を入れてもメモが消えない。自分で消す必要があり。

・達人に課金したが、達人といえるほどの問題ではなく、1問20〜30分程度あれば解ける。

### 5/5 — Well running

*2025-03-11, version 2.3.0*

Good on battery, I like dark mode at night. I wish the shift key worked for pencil marks instead of option key. The history file is great, and I like the completion fanfare.

### 5/5 — 怪しい日本語や変な広告がなく純粋に楽しめる

*2025-02-23, version 2.3.0*

広告付きや、日本語のおかしなアプリを避けて探していて、このアプリを見つけました。
数独系アプリをやったことがあれば基本的な操作はすぐに理解できます。操作しやすく、画面もシンプルで良いです。サクサク動きます。

中級と上級も一日一問、無料で遊べました。達人はできません。
達人もやってみたいので課金しようかと思いますが、問題ボリュームがわからないので一か月にするか永続にするか悩んでます

### 4/5 — 入力ボタン

*2025-01-11, version 2.3.0*

大きくしたい、メモは切替方式が好み、同じ数字の行列強調も欲しい

## Frequently asked questions about ∞ Sudoku

### What is this app?

This app is a completely ad-free Sudoku puzzle game that can be played endlessly offline. It features a simple and lightweight design focused on smooth operation, high-quality puzzles, and beautiful typography.

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

Key features include an ad-free and offline gaming experience, endless puzzle generation, a minimalist design for fast performance, and the inclusion of historically renowned, beautiful fonts for an enhanced visual experience.

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

Yes, the app is free to download and play. While the core game is free, it does offer in-app purchases, which are indicated by the presence of this monetization model.

### Can I play this Sudoku game offline?

Absolutely. This Sudoku game is designed to be played offline, meaning you do not need an internet connection to enjoy the puzzles. This makes it perfect for playing anywhere, anytime.

### Who is this Sudoku app for?

This app is for anyone who enjoys Sudoku puzzles, from beginners to advanced players. Its flexible gameplay options allow users to play at their own pace, whether they want a challenging mental workout or a relaxing way to pass the time.

## Version history (last 5 releases)

### 2.4.0 — 2025-05-28

I’ve added a feature that automatically clears candidate numbers (memos) from cells in the same row, column, and box when a number is entered. It’s enabled by default, but if you prefer a paper-like solving experience, you can turn it off in the settings.

### 2.3.0 — 2025-01-06

- I've developed a new feature that highlights cells containing the same numerical value as your selected one. Appreciating that this represents a departure from the traditional paper-and-pencil experience, it's initially disabled.
- During a recent refactoring session, I uncovered and addressed a minor bug that had been present since the app's launch.

### 2.2.0 — 2024-12-18

- I’ve added a free trial feature!
- You can now randomize themes and fonts every time you play – a feature I personally love.
- Plus, I’ve made some small tweaks and improved performance overall.

### 2.1.1 — 2024-12-11

# 2.1.1:

- I’ve added a bunch of new color themes—now there are 8 to choose from! Try them out and find the one that’s easiest on your eyes.
- My personal favorite? Setting the theme to dark and pairing it with the white color—it’s a great combo!
- I’ve also improved the keyboard shortcuts to make them even more convenient to use.

Thank you for your support, and I hope you enjoy the updates!

### 2.1.0 — 2024-12-05

# 2.1.0
- You can now choose your preferred language from the settings menu.
- Switching themes and fonts is easier and more fun than ever! The random feature might surprise you with its charm.
- A list of keyboard shortcuts has been added to help you better understand how to use them.
- While iPhone users might not use hardware keyboards very often, did you know we’ve supported keyboard shortcuts since the very first release? Connect a Bluetooth keyboard and give it a try! If you’re on an iPad, you can even use a Magic Keyboard to navigate and play.

# 2.0.2
- Improved performance when opening the history screen.

# 2.0.1
- The app hasn’t changed, but I’ve translated it into several languages. If you spot anything that could be improved, let me know in a review, and I’ll fix it right away.

## Apps similar to ∞ Sudoku

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Blue Moon Solitaire](https://appshunter.io/ios/app/blue-moon-solitaire/id1630222596) | 4.8 (29) | Free | Games |
| [Sudoku: Train Brain Puzzles](https://appshunter.io/ios/app/sudoku-train-brain-puzzles/id6497716251) | 4.8 (16,775) | Free | Games |
| [Classic Sudoku: Ad-Free](https://appshunter.io/ios/app/classic-sudoku-ad-free/id6445961553) | 5.0 (6) | Free | Games |
| [Sudoku Color - Classic Puzzle!](https://appshunter.io/ios/app/sudoku-color-classic-puzzle/id1503221765) | 4.8 (34,525) | Free | Games |
| [Infinity Sudoku 9x9](https://appshunter.io/ios/app/infinity-sudoku-9x9/id6673897515) | 5.0 (2) | Free | Games |
| [Crane Sudoku - Puzzle game](https://appshunter.io/ios/app/crane-sudoku-puzzle-game/id1563765031) | 4.5 (92) | Free | Games |

## Related topics

[iosudoku](https://appshunter.io/ios/topics/iosudoku)

---

*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 2026-08-11.*