Solve sudoku puzzles, train your brain, and have fun! Thousands of sudoku puzzles to explore. Install to start now!

Classic sudoku for beginners and advanced players. Whether you'd like to relax or keep your mind active – pass the time in a pleasant way! Get a short stimulating break or clear your head with Take your favorite game with you wherever you go. Playing on mobile is as good as with a pencil and paper.

Choose any level you like. Play easier levels to challenge your brain, or try expert levels to give your mind a real workout. has some features that make the game easier for you: hints, auto-check, and highlighted duplicates. You can use them, or complete the challenge without their help – it's totally up to you! What's more, in each puzzle has one solution.

Get an amazing sudoku experience:

· Take notes to keep track of possible numbers. Every time you fill in a cell, your notes are automatically updated!
· Hints can guide you when you get stuck
· Complete Daily Challenges and get unique trophies
· Take part in Seasonal events and win unique medals
· View Statistics and track your progress
· Color themes. Choose one of the three looks to play with more comfort, even in the dark!
· Challenge yourself and figure out your mistakes, or enable Auto-Check to see your mistakes as you go
· Highlight duplicates to avoid repeating numbers in a row, column or block
· Express yourself with funny ninja stickers for iMessage!

Challenge your brain with anywhere, anytime!

What’s New

Version 3.0.0

Get ready for the upcoming event:
- Independence Day event starts on June 26.
- Universea World event starts on July 10.
- Food and Drinks event starts on July 24. Get ready to take part in game events and collect unique postcards!

- Performance and stability improvements

We hope that you enjoy playing We read all your reviews carefully to make the game even better for you. Please leave us some feedback to let us know why you love this game and what you'd like us to improve in it. Keep your mind active with!

Ratings and Reviews

4.7 out of 5
1M Ratings

1M Ratings

JayPeeJP ,

WARNING: Very addictive app. 2 small changes I wanna suggest

Fair warning, if you get this app and play a game, you will not be able to put it down. I am addicted to this game and play it all the time. Plus it’s one of the few iPhone games that make you think and challenge your brain, which I love. But I would change two things, and the first is the hints. Look, the hint thing is great, but there’s sometimes a hint where it fills out the entire board of the possible numbers they could be, which is nearly giving away the answers. I would get rid of this or at least have it as a changeable setting in the game, if it’s not already. I would also change the trophy system for playing every daily game in a month. You should get rewards for the whole month, such as 10 free hints (meaning without ads) for a month and maybe 20 for a year. Because of these things, if I could, I would rate this game 4.9/5 stars, but I gotta round up. But other than these features, amazing game, doesn’t abuse ads at all.

Developer Response ,

Hello! Thank you for your feedback. Smart hints help to learn the strategy and the techniques on how puzzles are solved. They show not just a random column or row, but what should be the next logical move towards the right solution according to the current state of the puzzle. Also, you can switch to simple hints, which allow you to select a cell and get the number that matches the final solution of the puzzle. For this, open the app, tap the "gear" icon in the right upper corner, select Settings and disable Smart Hints. You’re welcome to contact us via the app and share your ideas and suggestions on how to make our app more fun and enjoyable for you. Thank you in advance!

shashonn_m ,

3 tries????

I was obsessed with this app when I first downloaded it about a month or so ago and would play several games for literally hours. I took a break from it for a week before coming back to it and I don’t know if it updated or something while I was away from it, but there are a few things now that I greatly dislike. For one, I don’t like that once I’ve used one of the numbers up it just disappears; I feel like the challenge is not noticing when I’ve used the numbers up or not and I think this new change is unnecessary. Secondly, now I see that if you put a number incorrectly in the square three times then you lose the game altogether and you have to start the whole game over. This is extremelyyyyyy annoying because I hate games where I have a small amount of times to do well in a game. What is the purpose of having “tries”? Why not continue letting me make my mistakes until I finish the round? Why interrupt me in the middle of analyzing the puzzle? Sometimes I’ll accidentally press a number by accident and so this makes it even more annoying because I hadn’t meant to use up a “try”.

I wish this app would go back to the way it was before because now I don’t play it as often and even deleted it for a few days because I was so annoyed.

Developer Response ,

Hi! Thanks for sharing your feedback. The feature with the disappearing numbers is called "Hide used numbers" and you can turn it off in the Settings of the app. Also, you can disable Mistakes Limit there. Please open the app, tap "Gear" icon at top right, select Settings and turn off “Mistakes Limit” and "Hide used numbers". If you have any other questions, please let us know, we'd be happy to help!

Purdueet ,

Ad placement lousy

First, with a couple exceptions I really like the app. It has great features. For the challenge I like to play it with no extra tools or hints that I’ve made a wrong entry. At times I get to the end and there’s a problem I can’t undo easily so I just want to start over. I can’t see how to do that without “un-doing” every move, or selecting each square and hitting erase. Please add a button to clear the puzzle to start over.

My second concern is irritating enough to delete the app and find another game. On my IPhone 6s it’s the tight placement of the ad banner next to the number entry at the bottom of the screen. If I play with two hands inevitably I miss the number and hit the ad banner which takes me to another page. I understand the need for ads with a free game. But, that placement is so close that I mistakenly hit the ad many many times during a puzzle and I lose my place or thought process. It is maddening. I don’t even look at the ad, I get frustrated and immediately hit the button to return to sudoku. I’m glad you get the clicks for the advertising revenue but it feels like a setup with the layout so you get those clicks.

Please fix these. It would be a 5 Star review otherwise!

Developer Response ,

Hi! Thanks for your feedback.
If you want to erase all numbers/notes just restart the game. You can restart the game from the Main screen. Just tap the "Back" button in the left upper corner, click "New Game" and select "Restart". We'll consider your comments about ads placement.
If you have any other questions, let us know and we’ll be happy to help!


147 MB

Requires iOS 10.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Arabic, French, German, Italian, Japanese, Korean, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Thai, Traditional Chinese, Turkish, Vietnamese

Age Rating
In-App Purchases
  1. Remove Ads $4.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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