Puzzle IO - Binary Sudoku 4+

Sudoku, but better‪!‬

99 Up Games

Designed for iPad

    • 4.6 • 320 Ratings
    • Free
    • Offers In-App Purchases



Sudoku in better!

Puzzle IO is super simple and crazy addictive! Discover a new kind of Sudoku with modern graphics, animations, and ease of use!

Millions of top class puzzles with selectable levels of difficulty, all free! :)
All levels of difficulty are infinitely generated and are different every time!
To play Puzzle IO, fill each 10 by 10 grid with 0 and 1. Each row and each column must contain the same number of 0 and 1. Three 0 or three 1 in a row isn't allowed ! Will you figure out the solution quickly enough and beat the best scores ?

Puzzle IO also features :

=> A smart point system ! Each complete and valid row gives you 11 points and you get to multiply that by 20 or more ! But be careful, the multiplier will decrease over time !

=> With Game Center implemented, you can now rank and compare Puzzle IO scores against your friends and challenge them to beat your highest score !

=> Six levels of difficulty which will test your wits in more than one way !
You gain access to medium, hard, expert and nightmare levels by defeating the previous difficulty level. All levels are generated on the spot, you won't face the same grid twice !
We'll go back to the game now, see you in there !

What’s New

Version 1.7.10

Version 1.7.10

Optimized systems and performance for new devices. Verified offered ads and IAP functionality.

Ratings and Reviews

4.6 out of 5
320 Ratings

320 Ratings

Solarbear16 ,

Love this game!

This is the best version of this game I've found. Sometimes the color correct answer doesn't show up, it just spins in black and white; but a minor glitch. It's good for quick games!

But, why is the hard version harder than expert or nightmare? And why is nightmare easier than expert? Seems counterintuitive.

yahrbalfbja ,

Please add dark mode game play!!

I love, love, LOVE this game. I love to mindlessly play it because it helps my brain focus on what i’m hearing. Another time i really like to play is when i’m trying to fall asleep. With my phone even on it’s darkest setting, it’s still much to bright to play when I’m trying to wind down since the game uses a mostly white background. Not only would adding this feature integrate the app more seamlessly with iOS, but it would make it look a lot more professional with this useful, new feature, putting it further above similar apps and making it the obvious choice for users! I’m a teen and I’m not huge fan of going on social media while i’m around others (because I don’t pay attention to them) and I also have no other games on my iPhone, leaving this app my go to option for really any entertainment. I alone have made you guys a decent amount of revenue just from the ads I watch between puzzles, so the least you could do is make a game-changing addition of dark mode for your biggest money maker :) Other than that it’s a 5 star game all the way.

DSizzle04 ,

Ads aren’t loading, preventing from game playing

Starting as of yesterday, the FaceBook Ad specifically tries to load but can’t and then I can’t play the game. This happens on two of my iOS devices, neither have ad blockers. Same happens on cellular vs WiFi. Deleting the app and reinstalling it lets me get through the tutorial and play 1 quick game but then I’m stuck with the same issue.

Also, some ads that play noise like the freeze the spider ad, plays noise even when you have the phone on silent and doesn’t respect the silent settings of the phone. That should never be allowed to happen.

Other than those issues, I love the game and it is the best version I’ve found. Really wish the ad issue would be fixed.

Developer Response ,

Thank you for your feedback! Can you add your devices types in your comment so we can test the game on those ourselves and find the issue ?
Thank you for your kind words and your continued support. We’ll do everything we can to take care of that issue.

App Privacy

The developer, 99 Up Games, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Used to Track You

The following data may be used to track you across apps and websites owned by other companies:

  • Location
  • User Content
  • Identifiers
  • Usage Data
  • Diagnostics

Data Not Linked to You

The following data may be collected but it is not linked to your identity:

  • Location
  • User Content
  • Identifiers
  • Usage Data
  • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Game Center

    Challenge friends and check leaderboards and achievements.

More By This Developer

You Might Also Like

LogiBrain Binary
Binairio - Binary Puzzle
Zuzu · Binary Puzzle Game
Coding Game - Binary Puzzle