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Sudoku by Joseph

Sudoku by Joseph

Classic Number Puzzle

2.4K ratings
144 reviews
With Ads
🎮 Games
🎲 Board
🧩 Puzzle
Free
In-App PurchasesWith Ads

Details

  • Released
  • Updated
  • February 25, 2011
  • July 24, 2026

Developer

Keitgen GmbH
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Sudoku by Joseph screenshot #1 for iPhone
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Sudoku by Joseph screenshot #6 for iPhone
Sudoku by Joseph screenshot #7 for iPhone
iphone
ipad
🧾$1.99 - $9.99
In-App Purchase↘︎
📌Ready
Reviews summary↘︎
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About

This app offers a comprehensive Sudoku experience with 12 unique puzzle variants, including classic, jigsaw, and killer modes. Enjoy daily challenges, customizable themes, and detailed statistics. Start with free variants and unlock all puzzles with a premium subscription.

✓12 unique Sudoku variants
✓Classic, Jigsaw, and Killer Sudoku
✓Daily Challenge puzzles
✓Multiple difficulty levels
✓13 customizable themes
✓Offline play
✓Full statistics tracking
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What users say

Summarized from real user reviews of Sudoku by Joseph. Based on 2.4K reviews and a 4.7/5 average, it highlights the 5 positives and 4 negatives reviewers mention most about this game.

Positive things

  • 🚀Jigsaw puzzles
  • 👍Simple and intuitive interface
  • 👍Variety of settings and options
  • 👍Responsive developer
  • 👍Clean and minimalist design

Negative things

  • 🐛Ads covering gameplay
  • 🐛Compatibility issues after updates
  • 🔋High battery consumption
  • 🔒Lack of ad-free purchase option
See all reviews

What's New in Sudoku by Joseph

2026.15

July 24, 2026

2026.15: - Fixed a screen rotation bug on iPhone 2026.14: - Fixed a small bug 2026.13: - Fixed a small bug 2026.12: - Fixed a Gattai-3 bug in the Daily Challenge - New high contrast option 2026.11: - Fixed a small bug 2026.10: - Fixed a visual bug in Classic puzzles - Fixed a small crash 2026.9: - Fresh puzzles - New option to play Jigsaw with colourless zones 2026.8: - Tweaked highlight colouring - Fixed a Killer bug in the Daily Challenge - Added a reset statistics button 2026.7: - Long-press to enter pencil marks (enable in Settings) - Fixed statistics and dark mode readability - Fresh puzzles 2026.6: - Fixed a few small bugs 2026.5: - Fixed a crash in the statistics 2026.4: - Auto Pencil Marks: automatically fill in all pencil marks (Premium) - Candidate Filter: highlight cells containing a specific candidate 2026.3: - Fixed a crash when completing a puzzle - Toggle a cell value by tapping the number again - Improved hint visuals 2026.2: - Option to hide the clock - Customisable pencil markings - 7-day free trial 2026.1: Biggest update in 15 years: - 12 puzzle variants including Killer, Samurai, Flower, and Kazaguruma - Daily Challenge with streaks - 13 colour themes, 14 symbol styles - Complete redesign

More

Subscription plans

Premium Yearly

1-year subscription to Premium

$17.991 Year
7 Days trial
How to cancel Sudoku by Joseph subscription ⁉️
3

In-App Purchases

$4.99

Medium Tip

A medium tip

User reviews

Most RecentHighest RatedLowest Rated

new version hurts my eyes

The new version is distributing. My eyes hurt. There may be settings to adjust the display but I don’t want to go through the hassle to figure it out.

The old version had clean lines that provided an easy to use puzzle I could complete while waiting in line.

This used to be one of my favorite APPS but you lost me as a user. I will be deleting.
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kat102018kat102018

Response from developer

Hi Kat, thank you for taking time to review the app. Sorry to hear that your eyes hurt while playing. I couldn't imagine why, but I am genuinely curious what the details are? Another user mentioned that the numbers were too light, is that possibly the issue? If so I just added a setting to increase contrast. I would really like to hear more about what disturbed you with this new version, maybe I can fix the details. Just send me an email to support@keitgen.de Thank you and have a great day!

Was perfect. - now part of Apple Games - HATE!

WAS: No interruptions. Intuitive. Peaceful. Minimalist appeal. Not Top of the “Just Game”. Very not happy with the change of format and the unnecessary options. Too many clicks to get to the game. Bad move. Unsubscribed after many year. Now Apple Games keeps coming up. HATE! Was simple, now intrusive.
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Ds9bDs9b

Response from developer

Hi, thank you for your review. I'm sorry to hear you're not happy with the recent update. Just yesterday I received the first report from a user about Game Center being intrusive — I'm already working on a fix and will address it in an upcoming update. As for too many clicks to start a game: this was necessary because I added more game variants to choose from, but it should only be one additional tap compared to before. I'm sorry you felt strongly enough to unsubscribe — I would have loved to learn more so I can improve the app. If you're still open to sharing what specifically is bothering you, please send an email to support@keitgen.de. I'd be happy to look into the details and see if I can bring things closer to the experience you enjoyed.

Best one so far!!!

Great game! I love how unlike other sudoku games out there, there aren’t any ‘levels’ like intermediate, easy etc because most of the times I just want a sudoku game straight away without having to go through this level that level, like just give me the game! And this one does that perfectly. I also love the settings and the pencil feature. However one thing I’d like them to change is the mode, so I wish they had a dark mode because the light mode can be a bit jarring, amazing game otherwise, thank you!

Xx
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BagginsespresciousBagginsesprescious

At last a jigsaw shape

The puzzle option includes jigsaw kind of free-form shape instead of the regular 3x3x3 grid. A lot more fun. Thank you.
LazybummetteLazybummette

Great Game

Good game to play to when relaxing.
Hayden86Hayden86
See 139 more reviews

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User experience

🐞

Reported Bugs

3 issues

Crashing issues

Bug

Incorrect error highlighting

Bug

Gameplay elements not visible on screen

Bug
✨

Requested Features

4 requests

Dark mode option

Feature

Ability to change font/color contrast

Feature

Pencil mark mode

Feature

Ability to reset statistics

Feature

FAQ

What is Sudoku by Joseph?

Sudoku by Joseph is a mobile application that provides a comprehensive Sudoku experience with 12 unique puzzle variants. It offers classic Sudoku, Jigsaw Sudoku, Killer Sudoku, and nine premium variants for enthusiasts. The app includes features like daily challenges, customizable themes, and detailed statistics to enhance gameplay.

What are the key features of Sudoku by Joseph?

Key features include 12 distinct Sudoku variants such as Classic, Jigsaw, and Killer Sudoku, a Daily Challenge for a new puzzle each day, multiple difficulty levels, 13 customizable themes with light and dark modes, customizable fonts, full statistics to track progress, and offline play. It also supports Game Center for comparing achievements.

How much does Sudoku by Joseph cost?

The app offers three free variants to enjoy: Classic, Jigsaw, and Killer Sudoku. To unlock the nine premium variants, a premium subscription is required. The subscription automatically renews unless canceled at least 24 hours before the current period ends.

Can I play Sudoku by Joseph offline?

Yes, the app is designed to work offline, allowing you to play anywhere, anytime without an internet connection. This feature ensures uninterrupted puzzle-solving sessions regardless of your location or network availability.

Who is the target audience for this app?

This app is designed for Sudoku players of all levels, from beginners to advanced enthusiasts. It caters to those who enjoy logic puzzles, brain games, and are looking for a diverse range of Sudoku variants and a customizable, ad-free experience.