Sudoku Ninja: Classic & Killer is a puzzle app developed by Sudoku Labs.
How many times has Sudoku Ninja: Classic & Killer been downloaded?
Sudoku Ninja: Classic & Killer has been downloaded 42 thousand times. In the last 30 days, the app was downloaded 430 times.
What is the rating of Sudoku Ninja: Classic & Killer?
Sudoku Ninja: Classic & Killer is rated 4.58 out of 5 stars, based on 720 ratings.
Is Sudoku Ninja: Classic & Killer free?
Sudoku Ninja: Classic & Killer is free to download. The APK download size is 41.57 MB. The latest version available is 2.8.6. The last update was on July 25, 2026.
What are the requirements for Sudoku Ninja: Classic & Killer?
The app has a content rating of Everyone. The app has been available on Google Play September 2024.
Description
Play Classic Sudoku and Killer Sudoku in one app! Enjoy 40,000 handcrafted sudoku puzzles, daily challenges, and relaxing offline play — a complete number puzzle experience for beginners and experts alike.
🥷 Two Sudoku Games in One Why install two apps? Sudoku Ninja combines classic sudoku and killer sudoku, so you can switch between two popular logic puzzles anytime. Solve a quick easy grid on your commute, then take on a hard killer sudoku (also known as sumdoku, addoku, or sumoku) when you want a real brain workout.
📵 No Banner Ads — Ever We hate interrupted thinking as much as you do. Sudoku Ninja shows no banners and no pop-ups while you solve. Ads appear only after you complete a puzzle, or when you choose to watch one for a hint. Your concentration stays unbroken from the first cell to the last.
🧩 Game Features • 40,000 Sudoku Puzzles — endless content across both game modes • Classic & Killer Sudoku — two number games in one app • 5 Difficulty Levels — Easy, Medium, Hard, Expert, and Invictus for true masters • Daily Challenges — solve the daily sudoku and earn unique rewards • Offline Play — enjoy sudoku offline, anywhere, no wifi needed • Magic Pencil & Autofill Notes — add and manage pencil marks instantly • Fast Input Mode — built for experienced players • Error Highlighting — customize how you detect and fix mistakes • Auto-Save — pause any puzzle and resume anytime • Cloud Sync — continue your game across devices • Leaderboards — compete with players worldwide
🔢 How to Play Killer Sudoku New to killer sudoku? It works like the classic number puzzle with one twist: • Fill rows, columns, and 3x3 boxes with digits 1–9, just like classic sudoku • Dotted lines mark “cages” — digits inside must add up to the number in the corner • No repeats within a cage, row, column, or box
If you enjoy math puzzles like kakuro or kenken, killer sudoku will feel right at home. Every level is carefully balanced, so beginners learn fast while experts push their limits.
🧠 Brain Score How sharp is your mind? Take a quick 7-minute brain test — pure visual logic, no math, no rules to memorize. Play daily for a week, then retake the test and watch your Brain Score climb. Track your progress across four skills: focus, speed, logic, and pattern recognition.
🥋 Ninja Mode Experiment freely, like a sandbox for your brain. Mistakes are not counted or shown — perfect for testing strategies and learning. Apply your changes to the grid when ready, or roll back to your last checkpoint anytime.
☕ Coffee Mode Set a time limit and race the clock! The harder it gets, the more bonus points you earn — perfect for quick, intense brain training sessions.
🎨 Customization & More • Modern design with themes, colors, and fonts • Gentle animations and a clean grid that helps you focus • Share your progress with friends • Regular updates with new puzzles every week
Whether you want to unwind with an easy number game or grind expert logic puzzles, Sudoku Ninja is made for every sudoku lover. Many puzzles are handcrafted by our team to guarantee a premium experience. Download now, train your brain daily, and become a true Sudoku Ninja!
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Comments on Sudoku Ninja: Classic & Killer for Android
★★★★☆Hjalti Þorsteinsson· Oct 6, 2025
Amazing sudoku app. I'm making this review way after they ask me to (in case they sneak sth in after) and it's great. Only ad is after a game. Only criticisms I have is the app does not tell you how many mistakes you've made mid-game, and it does not pause your time when your screen is off. This app is now my go-to for Sudoku.
★★★★★Bikash goud· Sep 3, 2026
Your game is very good, but I think one option is not working correctly. When we enter a number in a row or column where the same number already exists, it is not counted as a mistake. However, when there is no duplicate number, it is counted as a mistake. I think this is incorrect. There should be an option where entering a number that already exists anywhere in the same row, column, or relevant area is counted as a mistake. Any duplicate number should be counted as a mistake.
★★☆☆☆Santosh Lamichhane· Oct 15, 2025
Latest update has bugs. The pencil marks of killer sudoku overlaps the cage value, which makes it unreadable. Please update. Also, turn the pencil brown in pencil mode.
★★☆☆☆Nat Yong· Sep 1, 2026
Fun game ads are terrible. Noisy, long. And unskippable.
★☆☆☆☆حسین جعفرزاده· Jul 15, 2026
This update is terrible. The previous version was much better. You ruined the game with this update. If it doesn't work like befor, I'll delete the game.
Google Play Rankings for Sudoku Ninja: Classic & Killer
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Technologies used by Sudoku Ninja: Classic & Killer
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