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By Optime Software LLC

This app is only available on the App Store for iOS devices.


Take a journey to feudal Japan with Sudoku Free! With beautiful graphics and killer features, Sudoku Free! is the best Sudoku app available for iOS.


Two separate keypads, one for entries and one for notes, allow you to enter values quickly and easily. No more tedious switching between entry mode and note mode to complete your puzzle.


The optional auto-notes feature enters all of the notes into the puzzle for you and keeps them updated as you solve. If you don't want that much help, the optional smart notes feature automatically deletes values from notes you have entered manually when they are no longer valid.


The optional error checker tells you when you have entered an incorrect or illogical value, allowing you to catch errors early and preventing needless frustration.


Five difficulty levels, from easy to insane, ensure that you will be able to find a puzzle that matches your skill level. With 3,000 total puzzles, you won't run out of puzzles any time soon.

Download Sudoku Free! for free today and start playing Sudoku the way it was meant to be played!

What's New in Version 1.60

• New More Games screen
• Minor bug fixes

iPhone Screenshots

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Customer Reviews


One of the more difficult ones to play on. Let me write my own notes but automatically delete a number from the column/row/9x9 section when I make the number so. I don't see why the only option is to either write all your notes for you or do nothing at all. Taking out the number is just tedious, not hard or anything. I've found that little bit of assist really nice in sudoku apps. Too bad this one doesn't have it.

And now with some update you can’t even choose your difficulty level. Look, I’ve been playing Sudoku since I was in grade school; I do not need to start on easy and work my way up to expert thank you very bloody much.

Trash app.

Sodoku review

First of all the puzzles on the numbers and one box more or less. The numbers are crowded to one side corner that there is no distribution across the puzzle. This makes every puzzle almost Identical. The interface is good. It's just the puzzles that stink. ••• Three years later I change my review to 5-Star. The puzzles are much more sophisticated at the higher levels and the interface remains excellent. I recommend it as the best I have seen.

Wonderful game on a good interface

You probably already know how great a game Sudoku is. This is the best electronic version I have found. Having the separate keyboard for candidates makes this app work very well (I've got to have my candidates). The puzzles still aren't as hard as the newspaper on a Friday, but having the timer and scoring allows you to compete against yourself.

View in iTunes
  • Free
  • Category: Games
  • Updated:
  • Version: 1.60
  • Size: 46.3 MB
  • Language: English
  • Seller:

Compatibility: Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

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All Versions:

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