What's New

Fixed Game Center Achievement reporting.
Other minor bug fixes.

App Description

The only sudoku game to reach the top of the app store charts. Has been ranked as the #1 app in the overall iPad chart in 10 countries including the United States. A top 10 game in 72 countries!

It's been called the "Best Sudoku Game on ANY platform". Sudoku Book is an essential game for every iPhone or iPad. It's been featured by Apple in What's Hot, New and Noteworthy, Game Center Games, Game Starter Kit, and recently in Popular Puzzlers.

If you like Sudoku you have to try Big Bad Sudoku Book. It's our opinion that many other versions of the game sort of take the fun out of it. They won't let you enter in wrong numbers, and if you ask for a hint they straight up give you the answer to a cell. Why not just put up a puzzle and solve it for you? I'll tell you why, cause that's not fun! Our approach is a lot different. Our hints guide you to answers without flat out giving it away. We provide the tools you need to solve the puzzle with your brain, just like a real paper sudoku book but better!

*** "If Apple made a sudoku game I think it would look like this" - Dytavio ***

Change The Look!! Version 3 adds a fun twist on the classic game with new downloadable themes and challenging new puzzle book campaigns. But this is not a freemium app.. Sudoku Book's core functionality is all included. It has unlimited free play in all levels and all the same features as the previous version plus more.

*** "The whole look is perfect... This is the best sudoku interface of the five sudoku apps I have downloaded. I suspect the rest will be removed from my iPad" - GrayerBeard ***

Puzzle scoring brings an arcade game feel to sudoku and provides a metric for challenges. Sudoku Book uses an exclusive method of scoring games based on the difficulty of each answer - not based on time. Now there are two parts to the puzzle, how to solve it and how to get a higher score.

We listen to our users and have added many features based on user requests. Tech support is available within the app as a direct email to the developer. And we respond. Already in version 3 we've been in contact with many users and are fixing things based on their input.

*** The "Best Sudoku got better. Still the most like pen and paper. I love the interface. New changes made the best better." - pluto6 ***

Sudoku Book 3 adds new puzzle types and a new difficulty level. All puzzles are guaranteed to have a single solution and be solvable without guessing. Harder puzzles do require some advanced solving techniques.

Also added are many new user requested features like auto removal of marks, number counts (how many of each number is on the board), and the ability to turn off manual highlighting and the mistake smudges.

Optimized for the iPhone5 screen!

iPhone Screenshots

(click to enlarge)

Big Bad Sudoku Book screenshot 1 Big Bad Sudoku Book screenshot 2 Big Bad Sudoku Book screenshot 3 Big Bad Sudoku Book screenshot 4 Big Bad Sudoku Book screenshot 5

iPad Screenshots

(click to enlarge)

Big Bad Sudoku Book screenshot 6 Big Bad Sudoku Book screenshot 7 Big Bad Sudoku Book screenshot 8 Big Bad Sudoku Book screenshot 9 Big Bad Sudoku Book screenshot 10

App Changes

  • January 05, 2015 Price decrease: $2.99 -> FREE!
  • November 21, 2014 Price increase: FREE! -> $2.99
  • September 09, 2014 Price decrease: $1.99 -> FREE!
  • September 01, 2014 Price increase: FREE! -> $1.99
  • August 11, 2014 Price decrease: $1.99 -> FREE!
  • August 02, 2014 Price increase: FREE! -> $1.99
  • February 19, 2014 Price decrease: $1.99 -> FREE!
  • February 14, 2014 Price increase: FREE! -> $1.99
  • December 17, 2013 Price decrease: $1.99 -> FREE!
  • December 12, 2013 Price increase: FREE! -> $1.99
  • October 20, 2013 Price decrease: $1.99 -> FREE!
  • September 20, 2013 Price increase: FREE! -> $1.99
  • August 31, 2013 Price decrease: $1.99 -> FREE!
  • August 27, 2013 Price increase: FREE! -> $1.99
  • July 26, 2013 Price decrease: $1.99 -> FREE!
  • July 12, 2013 Price increase: FREE! -> $1.99
  • July 05, 2013 Price decrease: $1.99 -> FREE!
  • May 29, 2013 Price increase: FREE! -> $1.99
  • May 26, 2013 Price decrease: $2.99 -> FREE!
  • May 23, 2013 Price increase: $0.99 -> $2.99
  • May 18, 2013 Price decrease: $1.99 -> $0.99
  • April 30, 2013 Price increase: FREE! -> $1.99
  • April 27, 2013 Price decrease: $1.99 -> FREE!
  • April 02, 2013 Price increase: FREE! -> $1.99
  • April 01, 2013 Price decrease: $1.99 -> FREE!
  • March 13, 2013 Price increase: FREE! -> $1.99
  • March 05, 2013 Price decrease: $1.99 -> FREE!
  • February 26, 2013 Price increase: FREE! -> $1.99
  • February 24, 2013 Price decrease: $1.99 -> FREE!
  • February 20, 2013 Price increase: FREE! -> $1.99
  • February 16, 2013 New version 3.2
  • February 16, 2013 Price decrease: $1.99 -> FREE!
  • October 19, 2012 Price increase: FREE! -> $1.99
  • October 16, 2012 Price decrease: $1.99 -> FREE!
  • October 05, 2012 Price increase: $0.99 -> $1.99
  • October 01, 2012 Price decrease: $1.99 -> $0.99
  • September 29, 2012 New version 3.1
  • August 14, 2012 Price increase: FREE! -> $1.99
  • August 11, 2012 Price decrease: $1.99 -> FREE!
  • August 09, 2012 New version 3.0
  • February 14, 2012 Price increase: $0.99 -> $1.99
  • February 11, 2012 Price decrease: $1.99 -> $0.99
  • December 17, 2011 Price decrease: $2.99 -> $1.99
  • October 06, 2011 Price increase: $1.99 -> $2.99
  • September 25, 2011 Price decrease: $2.99 -> $1.99
  • July 30, 2011 Price increase: $1.99 -> $2.99
  • July 27, 2011 Price decrease: $2.99 -> $1.99
  • July 07, 2011 Price increase: $1.99 -> $2.99
  • June 24, 2011 New version 2.2

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