Sudoku, also known as Number Place, is a highly addictive puzzle game that was first seen and played in newspapers in late 19th century. Known as Number Place in Europe, it was then baptized by Japanese publisher, Nikoli Co., Ltd., as Suuji wa dokushin ni kagiru, which can be roughly translated to “the digits must occur only once” and was then shortened to Sudoku.

If you think you are weak when it comes to dealing with numbers and figures, don’t get held back from playing Sudoku. Once you play Sudoku, you’ll definitely think otherwise. Although this game involves the use of numbers, you won’t need the skill to add or subtract because the only thing you’ll ever use is your logic.

We’ve listed some of the best Sudoku apps for Android and maybe you would want to try playing some of them. Whether you are having a bit of difficulty when it comes to numbers or you are complete mathematics prodigy, these apps will certainly keep you entertained for hours.

Andoku Sudoku

Andoku Sudoku is an open-source Sudoku puzzle that doesn’t limit you to only the standard ones. Although Sudoku puzzles are highly addictive, playing the same old kind would somehow still bore you in one way or another.

This free Sudoku app has other variants that will definitely keep you playing for hours and hours. Andoku Sudoku has variants like X-Sudoku, Hyper-Sudoku, Percent-Sudoku, Color-Sudoku, and Squiggly Sudoku (otherwise known as Jigsaw Sudoku). This Sudoku app has 5 levels of difficulty, 10 different game variations, and 200 puzzles for each game variation and difficulty level. 

An Undo/Redo option is also available in this Sudoku app, compensating for the lack of the pencil option. It also keeps statistics of your game sessions and saves your progress automatically.

Try mashing up this app’s variants and take the level of difficulty to the highest. Challenge yourself with different Sudoku puzzles everyday and you’ll never look for any other means to keep you entertained.

Andoku Sudoku 2 Free

Still from the same developer who brought us Andoku Sudoku, Markus Wiederkehr, Andoku Sudoku 2 Free will keep you playing sudoku for longer periods of time. If Andoku Sudoku kept you entertained for hours, Andoku Sudoku 2 Free will definitely hold you captive for days.

Apart from the already awesome features like 6 game variations, 8 levels of difficulty, and a total of 10,000 puzzles, this app can be downloaded for free. All the Sudoku you’ll ever need in exchange for nothing, not even a penny.

Andoku Sudoku 2 Free also has the pencil option so you can easily erase your guesses. You can play Sudoku in either portrait or landscape mode and you can configure the game to assist you. The assistance options include automatically checking for errors, automatic removal of pencil marks, and highlighting to reveal patterns.

If you already have Andoku Sudoku, try this app, as well. Double the number of puzzles to solve, double the fun.

Sudoku 10’000 Free

Whether you are a beginner or an avid player of Sudoku, this app is for you. Sudoku 10’000 Free, aside from having 10,000 Sudoku puzzles to solve, is also integrated with OpenFeint where you can see global leaderboards for each difficulty level and achievements. With this, you can see how you are doing up on the leaderboards and probably get some OpenFeint points for every achievement.

Sudoku 10’000 Free has a hint functionality that could come in handy if you want some assistance while you are solving a puzzle. It also has the function to analyze the difficulty of a Sudoku puzzle to get the detailed list of required techniques to solve it.

This app is extremely customizable. It has the Sudoku Generator, Sudoku Solver, and Sudoku manager that allows you to create, delete, rename folders, and filter Sudoku puzzles according to their type and difficulty.

The Sudoku puzzles in this app can be played in either landscape or portrait mode and if you are left-handed, you can still enjoy playing the puzzles in landscape mode with great comfort and ease.

Sudoku Plus

Developed by NRSM, Sudoku Plus has an intuitive and simple user interface that conveniently lets the players concentrate more on the game itself rather than figuring out how the UI works. Simplicity sure does have some good points and with this app, having a simple UI is really appreciated.

This app has 4,000 puzzles, a thousand each for the Easy, Medium, Hard, and Very Hard difficulty levels. Although the UI is simple, you can still customize how it looks through changing its theme. A little play of colors wouldn’t hurt, so changing the theme once in a while may help the app look new to you each time you play.

Sudoku Plus also has the folder filter feature that can select what and what not to display. You can set it to display only new puzzles or you can set to display the new, solved, and currently playing puzzles. As basic tools in most Sudoku apps, the undo and the pencil options are also available.

This app can be downloaded for free and is free from any ad support. No ads will pop out while you are busy concentrating on solving your puzzle, a plus to this app’s simple but easy-to-use interface.

Sudoku (Jason Linhart)

At some point, puzzles can really frustrate you, especially when you have been solving and solving for hours but can’t get the right answers. Some Sudoku apps have ingeniously included hint systems in their games to aid the player in solving.

Sudoku (Jason Linhart), a free Sudoku app, has a multi-stage hint system that starts off with simple hints until you are given illustrations of the techniques that can help you solve the current puzzle you are playing.

This game app has 16 difficulty levels that are not ordinarily labeled, ranging from extremely easy to near-impossible. The way they are labeled will pique your interest, making you want to try each level and find out how easy or how hard the puzzles are.

This app’s UI is optimized to let the user navigate around the app using only a few touches. The numbers were purposefully made bigger and easier to read for the convenience of the players, especially those with vision problems. You can also change the color scheme of this app, as well as change the styles of the digits that appear on the puzzle, adding some flair to your playing experience.

Sudoku Free (AI Factory Limited)

Sudoku Free (AI Factory Limited) is another free Ssudoku app developed by AI Factory Limited, one of Google Play Store’s top developers. Being a product of one of the top developers, we can expect super smooth graphics and interface. This app is suitable for both tablets and phones so if you have both devices, you can readily play this app wherever, whenever.

This app has over 5 difficulty levels and houses 1,500 puzzles that will surely answer your brain training needs. It also has statistics tracking that tracks your fastest and average times in completing puzzles. Like the rest of the apps mentioned on this list, Sudoku Free also has optional hints and board aids that can help you in times of despair.

The undo option is also found in this app and a feature that allows you to have quick notes while playing the game. This way, you can note your guesses before you place them on the puzzle grid. It’s not entirely similar to the pencil option that other Sudoku apps have but the notes feature function is a very useful tool while solving the puzzles.

Super Sudoku

Once you play a puzzle game, Sudoku for example, it wouldn’t be a big surprise that you will find it hard to part from the puzzle. The feeling of sheer excitement when you finish a puzzle is incomparable, you wouldn’t even notice that you have invested so much time in completing one.

Super Sudoku gives you an intuitive and easy-to-use interface that again, will allow you to care less about how the interface works. It’s the puzzle you are after, not how complex the buttons on the screen are. What’s more, you can get this app for free and have no ads littering around while you are soaking up your time on a puzzle.

There are 5 levels of difficulty in this app to keep you challenged along the way. Other variants of Sudoku like Percent Sudoku, Color Sudoku, Hyper Sudoku, Sudoku-X, and Squiggly Sudoku are available aside from the standard one. Global leaderboards and an awards system that awards you points for every puzzle completed will challenge you to solve more difficult puzzles in record time, beating all the other players on the leaderboard.

Sudoku Free (

One of the best ways to occupy your time while waiting for the bus or lining up at the groceries is to play a game on your Android device. Some prefer to play arcade games on their devices and some choose games that exercise their brains. Puzzle games are one of those games that you should have on your device to keep you entertained. And, one puzzle game you should try playing is Sudoku.

Sudoku Free ( takes playing Sudoku a step higher since it allows you to play real-time competitions with other players. Aside from having that feature, this app autosaves your game whenever you have to exit and do something else. By the time you want to continue the puzzle, it goes back to how it was before you exited the app.

Pencil marks and the undo/redo options are readily available. Sudoku Free ( has four difficulty levels: easy, medium, hard, and extreme. You can try to progress to a higher difficulty and have your scores submitted online so you can keep track of them.

Sudoku II

Sudoku II is another sudoku app that boosts your skill in logical-thinking, exercising your brain even if you are just playing a game. This app has 3 levels and 3,500 free Sudoku puzzles to satiate your need for everyday challenge.

The app has 6 modes to choose from. You can play the standard one, X-Sudoku, Percent Sudoku, Squiggly Sudoku, Squiggly X-Sudoku, and Squiggly Percent Sudoku. In this app, you can continue a previously played puzzle or restart a puzzle completely.

And, of course, the undo button is available to let you go back a step in solving your puzzle. Hints are also present in this app and you can choose to either turn the hints on and off according to how often you need assistance with completing your puzzle.

Sudoku (SwanApps)

If you have tried playing Sudoku on paper, then you would like Sudoku (SwanApps). With this app, it is like you are playing real Sudoku on a newspaper or magazine: you use your handwriting.

This app has unlimited puzzles and the basic functions you usually find in a Sudoku app, such as undo option, statistics, hints and annotations, and checkpoint saving. If you are getting frustrated with solving a puzzle, the app has a game solver feature that completely solves the puzzle for you. The developer, SwanApps, included strategy tutorials to help beginners learn and appreciate the game and the app.

Changing the theme or skin of the app is also one feature you can expect with Sudoku (SwanApps). Helpful tips on making your handwriting more recognizable are available in the app itself and can also be viewed as a video on YouTube.

Try this app out to have more variety in playing Sudoku. Solving Sudoku with this app will give you the feeling of actually solving a pen-and-paper Sudoku puzzle.

No doubt about it, after playing some of the sudoku apps we’ve just listed, you’ll probably be nicknamed “Modern-day Plato” or “The Tech-savvy Aristotle.”  Don’t be surprised if you get quicker when solving something that needs a lot of logic. With these Sudoko apps, logical-thinking will come as naturally as breathing.

Carl Parker
We're all multi-talented and multi-faceted here, but, perhaps, Carl is the most multi-faceted in the bunch. Among Carl's many interests, Android holds a special place. He's particularly fond of reviewing Android apps and writing step-by-step guides for fellow Android fans.
Show 20 comments