# Sudoku by Joseph โ€” Classic Number Puzzle > Comprehensive Sudoku app with 12 variants, daily challenges, and customization. (iPhone/iPad app by Keitgen GmbH.) - Source: https://appshunter.io/ios/app/sudoku-by-joseph/id421136193 (this page in markdown: same URL + `.md`) - Developer: [Keitgen GmbH](https://appshunter.io/developer/416061212) - Category: Games, Board, Puzzle - Price: Free with in-app purchases - Rating: 4.70/5 from 2,396 App Store ratings ยท 147 written reviews indexed - Age rating: 4+ - Requires: iOS 17.6 ยท 109 MB - Languages: French (France), Afrikaans, German (Germany), Canadian English, Arabic, Basque, Bangla, Bulgarian, Catalan, Chinese (Simplified, China) and 36 more - Released: 2011-02-25 - Data updated: 2026-08-31 - Monetization: freemium - User reviews in markdown: https://appshunter.io/ios/app/sudoku-by-joseph/id421136193/reviews.md ## What is Sudoku by Joseph? Discover the most complete Sudoku experience on the App Store. Sudoku by Joseph offers 12 unique puzzle variants in one beautifully designed app - trusted by players for over 15 years with a 4.66-star rating from 2,400+ reviews. THREE FREE VARIANTS TO ENJOY: - Classic Sudoku - The timeless 9x9 number puzzle - Jigsaw Sudoku - Irregular regions replace the standard boxes - Killer Sudoku - Cage sums meet Sudoku logic NINE PREMIUM VARIANTS FOR TRUE ENTHUSIASTS: - 16x16 Sudoku - Super-sized grid for an extra challenge - Twodoku - Two overlapping Sudoku grids - Tripledoku - Three interlocking puzzles - Gattai-3 - Three grids sharing regions - Sohei - Four grids in a cross pattern - Samurai - Five overlapping grids - Cross Sudoku - A cross-shaped multi-grid puzzle - Flower Sudoku - Five grids in a flower arrangement - Kazaguruma - A pinwheel of four grids FEATURES THAT MAKE THE DIFFERENCE: - Daily Challenge - A new puzzle every day to keep your streak alive - Multiple difficulty levels - From beginner-friendly to fiendishly hard - 13 stunning themes - Customize your experience with light and dark modes - Customizable fonts - Choose the look that suits you - Full statistics - Track your progress and improvement - Game Center - Compare your achievements with friends - Ad-free with Premium - No interruptions, ever - Works offline - Play anywhere, anytime - Privacy-focused - We respect your data Crafted by an indie developer with a passion for puzzles, Sudoku by Joseph is the app that grows with you. Start with Classic, Jigsaw, or Killer for free, then unlock all 12 variants with a premium subscription. Premium Subscription: - Payment will be charged to your Apple ID account at the confirmation of purchase - Subscription automatically renews unless it is canceled at least 24 hours before the end of the current period - Your account will be charged for renewal within 24 hours prior to the end of the current period - You can manage and cancel your subscriptions by going to your account settings on the App Store after purchase - Any unused portion of a free trial period will be forfeited when you purchase a subscription Privacy Policy: https://sudokubyjoseph.app/privacy Terms of Use: https://sudokubyjoseph.app/eula ## Key features - 12 unique Sudoku variants - Classic, Jigsaw, and Killer Sudoku - Daily Challenge puzzles - Multiple difficulty levels - 13 customizable themes - Offline play - Full statistics tracking ## Pricing and in-app purchases Base price: Free. **Subscriptions** | Subscription | Price | Period | | --- | --- | --- | | Premium Yearly | $17.99 | per year | | Premium Monthly | $1.99 | per month | **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | Medium Tip | $4.99 | one-time | | Large Tip | $9.99 | one-time | | Small Tip | $1.99 | one-time | ## What do users think of Sudoku by Joseph? Overall sentiment: positive **Pros** - ๐Ÿš€ Jigsaw puzzles - ๐Ÿ‘ Simple and intuitive interface - ๐Ÿ‘ Variety of settings and options - ๐Ÿ‘ Responsive developer - ๐Ÿ‘ Clean and minimalist design **Cons** - ๐Ÿ› Ads covering gameplay - ๐Ÿ› Compatibility issues after updates - ๐Ÿ”‹ High battery consumption - ๐Ÿ”’ Lack of ad-free purchase option **Commonly reported bugs** - Crashing issues - Incorrect error highlighting - Gameplay elements not visible on screen **Most requested features** - Dark mode option - Ability to change font/color contrast - Pencil mark mode - Ability to reset statistics ## Recent user reviews (10 of 147) All indexed reviews: https://appshunter.io/ios/app/sudoku-by-joseph/id421136193/reviews.md ### 1/5 โ€” new version hurts my eyes *2026-05-21* The new version is distributing. My eyes hurt. There may be settings to adjust the display but I donโ€™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. **Developer response:** 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! ### 1/5 โ€” Was perfect. - now part of Apple Games - HATE! *2026-05-08* WAS: No interruptions. Intuitive. Peaceful. Minimalist appeal. Not Top of the โ€œJust Gameโ€. 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. **Developer response:** 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 โ€” 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 โ€” 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. ### 5/5 โ€” Best one so far!!! *2026-02-28, version 2025.1* Great game! I love how unlike other sudoku games out there, there arenโ€™t any โ€˜levelsโ€™ 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 Iโ€™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 ### 5/5 โ€” At last a jigsaw shape *2025-11-04, version 2025.1* The puzzle option includes jigsaw kind of free-form shape instead of the regular 3x3x3 grid. A lot more fun. Thank you. ### 5/5 โ€” Great Game *2025-07-22, version 2025.1* Good game to play to when relaxing. ### 5/5 โ€” Just Sudoku. *2025-01-28, version 2024.5* Thatโ€™s what I wanted, just sudoku. Has an easy and intuitive interface with good options. ### 5/5 โ€” Fun and Easy! *2024-05-22, version 2024.2* Lots of different settings to make it easier/harder, love! ### 5/5 โ€” Go *2024-02-24, version 2023.6* Cute love the anime girl popup You get fre anime girls in my house body pillo I love sudko I want to ### 3/5 โ€” 3 รฉtoiles car maintenant il y a de la Pub ๐Ÿ˜ฃ *2023-11-18* 3 รฉtoiles car maintenant il y a de la Pub ร  chaque fin de jeu ๐Ÿ˜ฃ ### 1/5 โ€” Google adverts *2023-10-26, version 2023.5* Just started serving me averts via Google. Google, FFS. App deleted. ## Frequently asked questions about Sudoku by Joseph ### 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. ## Version history (last 5 releases) ### 2026.17 โ€” 2026-08-26 2026.17: - Fixed a bug that prevented puzzles from loading 2026.16: - Fixed 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 colorless zones 2026.8: - Tweaked highlight coloring - 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 - Customizable 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 color themes, 14 symbol styles - Complete redesign ### 2026.16 โ€” 2026-08-25 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 ### 2026.15 โ€” 2026-07-24 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 ### 2026.14 โ€” 2026-07-13 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 ### 2026.13 โ€” 2026-05-29 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 colorless zones 2026.8: - Tweaked highlight coloring - 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 - Customizable 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 color themes, 14 symbol styles - Complete redesign ## Apps similar to Sudoku by Joseph | App | Rating | Price | Category | | --- | --- | --- | --- | | [Sudoku Fever - Logic Games](https://appshunter.io/ios/app/sudoku-fever-logic-games/id1247362774) | 4.5 (250) | Free | Games | | [Sudoku - Brain Puzzle Games](https://appshunter.io/ios/app/sudoku-brain-puzzle-games/id1442749804) | 4.8 (306,510) | Free | Games | | [Sudoku Joy: Number Master Game](https://appshunter.io/ios/app/sudoku-joy-number-master-game/id1460985516) | 4.9 (738) | Free | Games | | [Sudoku: Variants & Classic](https://appshunter.io/ios/app/sudoku-variants-and-classic/id1530683853) | 4.8 (1,588) | Free | Games | | [Sudoku.com - Number Games](https://appshunter.io/ios/app/sudokucom-number-games/id1193508329) | 4.8 (1,847,599) | Free | Games | | [Sudoku Master Edition](https://appshunter.io/ios/app/sudoku-master-edition/id1260190370) | 4.6 (7,892) | Free | Games | ## More apps by Keitgen GmbH - [DataScan (legacy Version)](https://appshunter.io/ios/app/datascan-legacy-version/id523032321) - [AIGNEP Scan](https://appshunter.io/ios/app/aignep-scan/id1096601355) - [DataScan](https://appshunter.io/ios/app/datascan/id6746359674) - [Puppy Journal](https://appshunter.io/ios/app/puppy-journal/id6755651937) All apps by Keitgen GmbH: https://appshunter.io/developer/416061212 ## Related topics [nacchan's grassland sugoroku](https://appshunter.io/ios/topics/nacchan-s-grassland-sugoroku) ยท [mini sudoku 6x6 daily puzzle](https://appshunter.io/ios/topics/mini-sudoku-6x6-daily-puzzle) --- *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 2026-08-31.*