Sudoku by Joseph

Sudoku by Joseph

Classic & Killer Number Puzzle

2.4K ratings
183 reviews
Free
In-App PurchasesWith Ads

Details

Released
February 25, 2011
Updated
November 2, 2026
Sudoku by Joseph screenshot #1 for iPhone
Sudoku by Joseph screenshot #2 for iPhone
Sudoku by Joseph screenshot #3 for iPhone
Sudoku by Joseph screenshot #4 for iPhone
Sudoku by Joseph screenshot #5 for iPhone
Sudoku by Joseph screenshot #6 for iPhone
Sudoku by Joseph screenshot #7 for iPhone
iphone
ipad
🖼️Get Icon
Icons↘︎

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. Play offline and experience a privacy-focused design.

✓12 unique Sudoku variants
✓Daily Challenge puzzles
✓Multiple difficulty levels
✓13 customizable themes
✓Full statistics tracking
✓Offline play
✓Game Center integration
Show original description

What users say about Sudoku by Joseph

See all reviews
+1

What's New in Sudoku by Joseph

2026.19

November 2, 2026

2026.19: - The Daily Challenge runs smoothly again: the freeze is fixed - Tapped the wrong number? Undo it within 3 seconds and it won't count as an error 2026.18: - Colour cells with four colours to mark your ideas - iPhone now rotates freely; iPad supports Split View and Stage Manager - Themes follow light and dark mode - Export your statistics - Full VoiceOver and large text support - Hints fixed on the hardest puzzles - Many small fixes and improvements 2026.17: - Fixed a bug that prevented puzzles from loading 2026.16: - Fixed a few small bugs 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
4

Subscriptions & In-App Purchases

Premium Yearly

1-year subscription to Premium

$9.991 Year
7 Days trial
Price Updates
November 5, 2026→$9.99
May 7, 2026→$17.99
March 8, 2026→$9.99
How to cancel Sudoku by Joseph subscription ⁉️

User reviews

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.
Show more

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.
Show more

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.

Schreckliches Update

Ich benutze diese Sudoku-App seit Jahren - tatsächlich jeden Abend vor dem Einschlafen - und habe mich damals ganz bewusst für sie entschieden, weil sie so ein angenehm schlichtes, ruhiges Design hatte.

Leider wurde genau das mit dem letzten Update komplett verändert, und ich muss ehrlich sagen: Ich finde das neue Design wirklich schrecklich. Im Hintergrund fliegen Zahlen herum, was extrem ablenkend ist, und die Zahlen selbst sind so groß dargestellt, als wäre man sonst blind. Das wirkt insgesamt überladen und nimmt der App genau die entspannte, minimalistische Atmosphäre, die sie für mich so besonders gemacht hat.

Bitte gebt den Nutzern zumindest die Möglichkeit, wieder auf das alte, schlichte Design umzuschalten. Das wäre wirklich wünschenswert für alle, die die App genau dafür lieben gelernt haben.

Andernfalls werde ich mir wohl oder übel eine andere App suchen - was ich wirklich sehr schade finde. Ich habe inzwischen über 5000 Spiele gespielt und würde meine Statistik nur ungern aufgeben.
Show more

Response from developer

Hallo Hanni, es tut mir sehr leid, dass dir das neue Update nicht gefällt. Die neuen Features habe ich aufgrund von Feedback anderer Nutzer so umgesetzt. Aber keine Sorge – ich wollte jedem die Möglichkeit geben, wieder zu dem zurückzukehren, was er kennt. In den Einstellungen lässt sich alles problemlos ändern: Man kann die fliegenden Zahlen ausschalten und die Schrift sowie die Farbe ganz individuell festlegen. Die App bietet nun mehr Möglichkeiten, sie so anzupassen, wie du es dir wünscht. Falls du Fragen hast, schreib mir gerne eine E-Mail an support@keitgen.de – ich gehe das gerne mit dir durch. Und falls ich etwas vom alten Design vergessen habe, versuche ich es wieder einzubinden. Das Update sollte etwas Tolles sein und nichts Schreckliches. Viele Grüße von der Ahr, Joseph

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
Show more

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.

Developer apps

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 makes Sudoku by Joseph stand out from other Sudoku apps?

Sudoku by Joseph offers 12 distinct puzzle variants, a significant number compared to many other apps. It also provides a daily challenge, extensive customization options with 13 themes, and detailed statistics to track your progress.

Does Sudoku by Joseph have ads?

Yes, Sudoku by Joseph contains advertisements. Users have noted ads covering gameplay as a con. While there is a premium subscription, the provided data does not explicitly state it removes ads, but rather unlocks premium variants.

Can I play Sudoku by Joseph offline?

Yes, Sudoku by Joseph works offline, allowing you to play anywhere, anytime without an internet connection. This is a key feature highlighted for user convenience.

What are the premium variants available in Sudoku by Joseph?

The premium variants include 16x16 Sudoku, Twodoku, Tripledoku, Gattai-3, Sohei, Samurai, Cross Sudoku, Flower Sudoku, and Kazaguruma. These are for enthusiasts seeking more complex challenges.

How does the subscription work for Sudoku by Joseph?

Subscriptions automatically renew unless canceled at least 24 hours before the current period ends. You can manage your subscriptions in your App Store account settings. A 7-day free trial is offered for both monthly and yearly plans.

What is the user sentiment for Sudoku by Joseph?

Overall sentiment for Sudoku by Joseph is positive, with users praising its jigsaw puzzles, simple interface, variety of settings, and responsive developer. However, some users have reported issues with ads and compatibility after updates.

What devices is Sudoku by Joseph compatible with?

Sudoku by Joseph is compatible with iPhone and iPad devices. It has an age rating of 4+.

How often is Sudoku by Joseph updated?

The latest version is 2026.19, and the app was last updated on November 2, 2026. This indicates a relatively recent update, though the year appears to be in the future.