# Sudoku X4U

> Multiple Sudoku game types with adjustable difficulty and puzzle saving. (iPhone/iPad app by Magnolia Heights Research and Development..)

- Source: https://appshunter.io/ios/app/sudoku-x4u/id489643695 (this page in markdown: same URL + `.md`)
- Developer: [Magnolia Heights Research and Development.](https://appshunter.io/developer/322438250)
- Category: Games, Puzzle
- Price: Free with in-app purchases
- Rating: 4.71/5 from 31 App Store ratings · 57 written reviews indexed
- Age rating: 4+
- Requires: iOS 6.1 · 8 MB
- Languages: English
- Released: 2011-12-21
- Data updated: 2026-07-08
- Monetization: free with in-app purchases
- User reviews in markdown: https://appshunter.io/ios/app/sudoku-x4u/id489643695/reviews.md

## What is Sudoku X4U?

Simply the best Sudoku app ever! Four games in one!

This is our free version for both iPhone and iPad with a large selection of puzzles to get you started with Sudoku X4. It can be upgraded to use our game engine that generates unlimited new puzzles at the touch of your finger. (Your iPhone or iPad is the computer making the puzzles!)

We have the classic Sudoku puzzles that you know and love. Then for a different twist on the game, try our Jigsaw Sudokus. Instead of the usual square boxes, these puzzles have odd-shaped groups which require a slightly different perspective as you work through them. We round out the selection with X variations on both of these puzzle types. In addition to the usual Sudoku rules, these X-Sudokus have a fourth restriction in the diagonals, which must also contain the digits 1-9. Not really harder, just interesting variations on the simpler Sudoku puzzle types.

Our Sudokus have 6 levels of difficulty, from absolute beginner to really, really hard. For newbies or aficionados who just want to relax, there are puzzles that require only simple techniques. At the other end of the scale, we have puzzles with Franken Fish, XY-Wing and other extreme patterns that will challenge even the most advanced puzzlers. (With no guessing required, of course.) These "really, really hard" puzzles rival the best handmade Sudokus.

We include an album storage system that allows you to save (and view) your partially solved and solved puzzles, as well as your choices for new puzzles. Our friendly user interface makes solving a pleasure, offering a great note implementation, various ink colors, a timer and complete undo/redo capabilities.

This is the ultimate Sudoku experience!

## Key features

- Four Sudoku game types
- Classic Sudoku
- Jigsaw Sudoku
- X-Sudoku variations
- Six difficulty levels
- Puzzle album storage
- Note-taking and ink colors

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

| Purchase | Price | Type |
| --- | --- | --- |
| pack of 50 puzzles | $0.99 | one-time |
| upgrade to unlimited puzzles | $2.99 | one-time |


## Recent user reviews (10 of 57)

All indexed reviews: https://appshunter.io/ios/app/sudoku-x4u/id489643695/reviews.md

### 3/5 — great game but suddenly broken

*2023-03-07, version 2.0.2*

whenever i try to open the game now , it instantly crashes before even getting to the games splash screen. attempted reinstalling the game with no changes occurring.

### 5/5 — The Best

*2022-11-28, version 2.0.2*

In my opinion the is the best sudoku app out there. I wish the creators would update it because I can’t get it on my iPhone which is newer than the iPad I play it on.

### 2/5 — Can’t add new puzzles with latest iOS update

*2019-10-25, version 2.0.2*

I love this app, but it now kicks you out of the app when trying to add a new puzzle.  This started happening after the latest iOS upgrade.  I would have rated it 5 stars if not for this bug.

### 5/5 — Sudoku X4U

*2018-06-27, version 2.0.2*

I love this sudoku app. It not only has great graphics and interface but it also has jigsaw and X sudokus.  Difficulty levels are from very easy to very hard but they all have a unique solution. No guessing necessary.  My only problem has been that when prompted to write a review it can’t access the App Store.  By the way it comes with a small set of free samples but I could buy an unlimited number of sudokus for $2.99.
Mr. Don Quixote

### 4/5 — Fun

*2015-12-26, version 1.3.5*

This one you can play over and over without having to pay

### 4/5 — Great game!

*2015-11-19, version 2.0.2*

Never disappointed as the variations always keep me challenged; always!!

Wish the jigsaw puzzle types could be chosen, the difficulty level moved closer to the current game and tapping a digit on the board highlights all of the same digits.

I would have given 5-stars if the authors would fix the rotation issue for iPad2 v.ios7! It's cumbersome to have to constantly rotate the iPad between the current game and the previous screen.

I'm still waiting for an update for ios7 to fix a rotation issue! My queries have fallen on deaf ears!!!
Please fix this! 151117

### 4/5 — Love it!

*2015-07-06, version 1.3.5*

The different layouts make it a sudoku app that never gets boring.  My favorite e-game!  V1.35

### 5/5 — Really nice interface

*2015-05-25, version 2.0.2*

Easy to use.

### 1/5 — Not sure about this app ...

*2014-12-03, version 2.0.1*

I got this app only because it included the option for jigsaw sudoku puzzles. I've played the games that came with it, but when I click on the + to add more games an error message flashes on the screen and immediately disappears. It can't be read. The app then shuts down. The puzzles were good, but I only had 2 of them to play. Don't know how to get more.

### 1/5 — Great

*2014-11-16, version 2.0.1*

I have a 4hd game that is hung up and will not open on plates 169

## Frequently asked questions about Sudoku X4U

### What types of Sudoku puzzles are available?

This app offers four distinct Sudoku experiences. You can enjoy classic Sudoku puzzles, Jigsaw Sudokus with uniquely shaped regions, and X-Sudoku variations that add a diagonal constraint. These variations are available for both classic and Jigsaw styles.

### How difficult are the puzzles?

The puzzles are categorized into six levels of difficulty, catering to a wide range of players. From absolute beginners who need simple techniques to advanced players who enjoy complex patterns and extreme challenges, there's a difficulty level for everyone.

### Is this app free to play?

Yes, this is a free version of the app that provides a good selection of puzzles to get you started. For unlimited new puzzles generated by the app's engine, an upgrade is available through in-app purchases.

### What features help with solving puzzles?

The app includes a friendly user interface designed for a pleasant solving experience. Key features include a great note implementation, various ink colors for marking, a timer to track your progress, and complete undo/redo capabilities.

### Can I save my progress?

Yes, the app features an album storage system. This allows you to save and view your partially solved puzzles, as well as your selected new puzzles, so you can pick up where you left off or revisit your favorite challenges.

## Version history (last 5 releases)

### 2.0.2 — 2015-04-07

This app has been updated by Apple to display the Apple Watch app icon.

Bug fix for In-App Purchases.

### 2.0.1 — 2014-10-07

Updated user interfaces for 3-1/2 and 4 inch iPhones and the iPad retina. iOS 6 & 7 and bug fixes for iOS 8. High performance 64 bit version.

### 2.0.0 — 2014-08-21

Updated user interfaces for 3-1/2 and 4 inch iPhones and the iPad retina. iOS 6 & 7. High performance 64 bit version.

### 1.3.5 — 2012-03-23

Tested with iOS 5.1.

### 1.3.4 — 2012-01-09

InApp purchase of puzzle pack and unlimited puzzles enabled.
Fixed intermittent bug drawing X on X-variant puzzles.

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## More apps by Magnolia Heights Research and Development.

- [Sporadic M12](https://appshunter.io/ios/app/sporadic-m12/id322438247)

All apps by Magnolia Heights Research and Development.: https://appshunter.io/developer/322438250

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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 2026-07-08.*