# Sudoku (No Limits) — Classic logic number puzzle

> Digital Sudoku puzzle game with multiple difficulty levels and online competition. (iPhone/iPad app by genina.com.)

- Source: https://appshunter.io/ios/app/sudoku-no-limits/id307466242 (this page in markdown: same URL + `.md`)
- Developer: [genina.com](https://appshunter.io/developer/307466245)
- Category: Games, Entertainment, Casual, Puzzle
- Price: Free with in-app purchases
- Rating: 4.80/5 from 8,402 App Store ratings · 1,825 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.6 · 11 MB
- Languages: American English, Dutch, German (Germany), Hebrew, Hindi, Hungarian, Japanese, Russian, Chinese (Simplified, China), European Spanish and 1 more
- Released: 2009-03-27
- Data updated: 2026-10-12
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/sudoku-no-limits/id307466242/reviews.md

## What is Sudoku (No Limits)?

Sudoku with no limits: every level, every feature, every puzzle – yours from the start.

Pick your challenge – Easy, Medium, Hard or Extreme – and solve with an interface that keeps every tool a tap away. Interrupted? Just leave: your puzzle is saved exactly as you left it.

Want to see how you compare? Upload your results, check the top scores, or join the weekly Sudoku competition.

Features:
 * 4 difficulty levels: Easy, Medium, Hard, Extreme
 * Custom mode: enter any puzzle and solve it in the same familiar interface
 * 3 input modes: "Digit first", "Cell first" or pop-up
 * Pencil marks (notes) with automatic fill and erase
 * Highlighting of the selected digit, plus crosshairs for the current row, column and box
 * Digit counts show how many of each digit are placed
 * Smart hints that use logic only – never guesses
 * Two levels of automatic error checking
 * Unlimited undo and redo
 * Night and Day modes
 * Auto-save
 * Plays offline – no internet needed to solve
 * Works on iPhone and iPad
 * Online results, top scores, history and real-time competitions

Free with ads. Prefer no ads? An optional ad-free subscription is available in the app.

Questions or suggestions? Contact us at sudoku@genina.com.

Like us on Facebook:
https://www.facebook.com/Genina-135806803144543

Follow us on X:
@GeninaDotCom

Or visit us online:
http://www.genina.com/apps/sudoku/

Enjoy!

PS The use of this application is governed by the standard Apple Terms of Use (EULA) located here - https://www.apple.com/legal/internet-services/itunes/dev/stdeula/, and is subject to our Privacy Policy located here - http://www.genina.com/pages/privacy/privacy.jsf

## Key features

- 4 difficulty levels
- 3 input modes
- Pencil marks with auto fill/erase
- Highlighting options
- Intelligent hints
- Online progress tracking
- Real-time competitions

## Pricing and in-app purchases

Base price: Free.

**Subscriptions**

| Subscription | Price | Period |
| --- | --- | --- |
| Ad-free quarterly | $0.99 | per 3 months |
| Ad-free yearly | $2.99 | per year |


## Recent user reviews (10 of 1,825)

All indexed reviews: https://appshunter.io/ios/app/sudoku-no-limits/id307466242/reviews.md

### 5/5 — Friendly Sudoku

*2026-10-05, version 11.0.10*

I really like the flexibility of this sudoku game. For example, you can start with either the cell or the numbers first. The visuals make it easy to look at choices. At the different level levels of difficulty make it challenging for anyone I would think. It’s just fun to play.

### 5/5 — Best

*2026-09-29, version 11.0.10*

This is the best Sudoku app I’ve tried!!

### 2/5 — WHAT HAPPENED?!?!

*2026-09-18, version 11.0.10*

Was able to validate and use a hint. Now, it shuts the app down. Not happy

### 5/5 — Played this version for years

*2026-09-17, version 11.0.10*

Best version of sudoku among the apps!

### 2/5 — Cell color options would get it 5 stars

*2026-09-05, version 11.0.10*

Cell color options would be appreciated.  Also I’ll mention the numeric keypad could be smaller, smaller buttons, so as to make a nice 3x3 grid.a. This is helpful when you’re going for speed.  And last…the “hard” is too easy.  Thanks.

### 5/5 — No ads are for real

*2026-09-02, version 11.0.10*

:)

### 5/5 — Best of the bunch

*2026-08-05, version 11.0.10*

I downloaded a “few” of these apps, and, once I became familiar with the interface, this is the easiest to use and has clear differing difficulty levels to choose from… some days I just do 3 or 4 easy ones, other days I get a bit more adventurous…

### 5/5 — nice and challenging

*2026-07-04*

it grows on you!

### 5/5 — Excellent brain trainer

*2026-05-18, version 11.0.10*

I used to play Sudoku on paper many years ago and enjoyed the brain power challenges that came along with the levels of difficulty. Sudoku on my hand phone is definitely a more convenient game.

### 5/5 — Все отлично работает.

*2026-05-13, version 11.0.10*

Все отлично работает. Чуть непонятен режим подсказки, но это не страшно

## Frequently asked questions about Sudoku (No Limits)

### What is this app?

This app provides a digital version of the classic Sudoku puzzle game. It features multiple difficulty levels, intuitive controls, and various helpful tools to enhance your puzzle-solving experience.

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

Key features include four difficulty levels, three input modes, pencil mark functionality with auto-fill/erase, highlighting options, intelligent hints, auto-save, unlimited undo/redo, and online progress tracking with real-time competitions.

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

The application is free to download and play. It offers in-app purchases and may display advertisements, which are common monetization models for free games.

### What are the common use cases for this app?

This app is ideal for anyone looking to play Sudoku on their mobile device, whether for casual entertainment, brain training, or to improve their logic and problem-solving skills. It's a great way to pass time or challenge yourself with a familiar puzzle.

### How does the online competition feature work?

You can upload your puzzle results to the app's servers to compare your performance with other players. The app also hosts weekly Sudoku competitions, allowing you to participate and see how you stack up against the community.

## Version history (last 5 releases)

### 11.0.11 — 2026-10-09

- Update to the latest iOS libraries and standards.
 - Fixed the iOS 27 crash.
 - Fixed translations.
 - Minor fixes and UI improvements.

### 11.0.10 — 2025-01-26

- Rolling back the "overwrite notification" change from the last release. It proved to be more intrusive than helpful. Thank you for your feedback. If you found it helpful and would like to have this as an option, please email us and we will consider making it into an optional setting.

### 11.0.7 — 2024-03-10

11.0.7:
- Changes to puzzle rating algorithm. Please report puzzle difficulty inconsistencies to debug@genina.com
- Introducing a new menu option to switch between Night and Day modes.
- Bug fixes.

### 11.0.5.1 — 2024-03-02

11.0.6:
- Changes to puzzle rating algorithm. Please report puzzle difficulty inconsistencies to debug@genina.com
- Introducing a new menu option to switch between Night and Day modes.

### 11.0.5 — 2020-11-26

- The new "Custom" puzzle function enables you to enter your own puzzle, then solve it using the same familiar interface.
- Ad-free version is no longer a separate program. The upgrade is done in-app now.
- Ad library updates and GDPR consent collection (where applicable).

## Apps similar to Sudoku (No Limits)

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Sudoku Puzzle World](https://appshunter.io/ios/app/sudoku-puzzle-world/id834107022) | 4.8 (19,733) | Free | Games |
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| [Sudoku: Logic Puzzle Workshop](https://appshunter.io/ios/app/sudoku-logic-puzzle-workshop/id1031502396) | 4.6 (220) | Free | Games |
| [Sudoku Times - Number Puzzle](https://appshunter.io/ios/app/sudoku-times-number-puzzle/id6447677832) | 4.8 (52) | Free | Games |
| [Sudoku - Aged Studio](https://appshunter.io/ios/app/sudoku-aged-studio/id1527531742) | 4.5 (611) | Free | Games |

## More apps by genina.com

- [Sudoku Premium](https://appshunter.io/ios/app/sudoku-premium/id326973977)
- [Real Lines](https://appshunter.io/ios/app/real-lines/id1290354940)

All apps by genina.com: https://appshunter.io/developer/307466245

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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 2026-10-12.*