Last updated on January 17th, 2026 at 03:17 pm
9 digits – sudoku variations – Entertainment Game Review
9 digits – sudoku variations is a Entertainment/Puzzle/Trivia game from Marcus Wagner, first launched in 14th July 2011.
It’s rated 4+ and currently has 16+ ratings on the App Store.
What Makes 9 digits – sudoku variations Stand Out
Play 4 brain teasing logic games – Sudoku | Killer Sudoku | MathDoku | X-Sudoku – with thousands of puzzles.
Don't get stuck – 9 digits' helpers guide your next move and teach you solution strategies.
• choose levels from beginner to master
• easily enter digits and pencil marks
• get step-by-step hints for your next move
• unique solutions, no guessing needed
• plenty of settings to tweak your game experience
• no ads
9 digits was created by Ivonne & Marcus who love to play logic games.
This Entertainment game offers engaging gameplay and regular updates for mobile players.
Player Feedback
As a newer release, 9 digits – sudoku variations is building its player community. Early feedback suggests .
Recent Updates & Development
Latest Update: 13th June 2021
Recent improvements include:
• iPad portrait shows larger puzzle
• Setting “Colored Digits” is retained during gaming
Download & Availability
9 digits – sudoku variations is available through the official App Store for iOS devices.
Get 9 digits – sudoku variations on App Store
Requirements: Requires iPhone 5s / iPad Air / iPad Air (Cellular) / iPad Mini 2 (Retina) / iPad Mini 2 (Retina, Cellular) / iPhone 6 / iPhone 6 Plus / iPad Air 2 / iPad Air 2 (Cellular) / iPad Mini 3 or later.
Compatible with iPhone and iPad devices.
Player Experience Highlights
Community Insight:
The best user interface we have ever seen in a Sudoku game. The use of color and position to stimulate additional parts of the brain is a great plus.
We love love love puzzles and we've never found another game that's so thoroughly challenging and logical in nature. It's a shame it isn't more popular.
Looks much more fun and colorful than most sudoku apps and has a good selection of games and an intuitive pencil mark interface.
This is a real tool for players that are serious about Sudoku. There are many many puzzles at many skill levels. The amazing, amazing hint system actually teaches you how to play better. The app is super smooth and responsive at all times. No competition.
Took a bit to get used to putting numbers in cells. Very much worth it. Great sudoku game. Our favorite.
We love this app. It is well organized, easy to use and extremely addicting.
This deserves to be more popular! Lots of puzzles in the App Store are computer-generated, but you can tell these are handmade. Excellent! Interface is clean and professional. Optional hints for those who like, and those who don't can shut the hint system off. This is the best KenKen we've found so far. It's nice to have Killer Sudoku included also. We hope that a future release might include larger KenKen (up to 9 by 9 would be super, and fitting with the "9 digits" name) and maybe a re-skin choice. We can see why Mr. Wagner went for colored digits, but we usually prefer a black-on-white scheme. Update: we bought several of the extra puzzle packs when they cost a few dollars. Well worth it. Now that the dev has generously made them free, this app gives you a large number of really nice puzzles. Very kind.
Love this app. So many different variations on sudoku plus the ken-ken ones. Difficulty is definitely more challenging then other similar app's. That killer sudoku can really give a headache thinking so hard.
One of the best sudoku apps out there, and it's free! It really should be more popular.
Great and challenging app with a variety of number puzzle games. We've tried almost every kenken and sudoku app, but this is definitely the best one! 4 games, 4 difficulties, 15 sheets per difficulty, and packages you can buy when you finally burn through those. The killer sudoku really IS killer.
Why is there barely anyone playing/ rating this game?? We've been looking for a sudoku kakuro combo! Thanks.
Awesome app. Great UI. Love the variety of puzzles.
Love the variations on the classic sudoku! Good UI, colors are very helpful.
Had three people ( are really good at sudoku) try same puzzle nobody could get it right and that's the easiest puzzle.
User feedback from Apple App Store
App Details
- Version: 1.4.1
- Size: 6.54 MB
- iOS: 13.0 or later
- Languages: EN, DE
- Content Advisory:
- Developer: Marcus Wagner
Last updated: 13th June 2021 | Genre: Entertainment, Puzzle | Developer: Marcus Wagner