Used to be great. Too many ads with sound you cannot silence. I'm completely fine with ads for a free app; they have to make money. Just the ones with videos/sound make using this intrusive in certain environments. At least allow a silence mode. Also, sometimes the blank add popup blocks the pencil function. Every time you select the pencil, you launch an ad.
Great game, completed the hardest 500, please add more. Comments about ads... shutttt up! There really aren't that many at all, they aren't annoying or intrusive. Game designer have to make some money. Apart from more games/levels in the 2 hardest groups please keep it exactly the same.
This was a very good game app. But now the ads are so bad that it makes the game unplayable. This sudoku game is challenging yet makes doing the puzzles easy. I have mixed feelings about the way it will not let you put the wrong number in a square. I like the way it keeps track of any mistakes you make. This does help in solving the problems quickly without trying to find your mistakes.
I just switched over to Android, and the Sudoku game I used on iTunes was not available, I have tried several free games, and this was by far the best. The only reasons for no fifth star: 1 expert is not hard enough, and 2 I like some sort of scoring system other than just a clock... Used to have 4 stars. Now 2 stars because of the ads that interrupt play. I don't mind ads at the beginning, or end but during the game really sucks, if you are in pencil mode, it defaults back to pen after the ad. Down to 1 star, haven't played in a while because of the other issues, but recently tried. The ads now block the pen/pencil so you can't switch modes. After lowering to 1 star was contacted and they said they would address the issues, I haven't used the game in a couple of months, when I tried it today the advertisement issues seem to be gone. Back up to 4 stars, glad to see they listen to feedback!
It feels like a real brain strengthening game you have to stay focus. Time gets away from you. As you increse your levels. I like it a lot.
Would give a 5 star rating. Played all the time HOWEVER now it almost impossible to play. Game keeps going to browser to try other games.
General bug fixes and optimization which brings you better gaming experience!