4 stars: Good game, too many adds with no obvious way to get rid of them.
5 stars: Best sudoku app, to many people complain about the adds, well pay it is just that simple. I love it
5 stars: Great format veery enjoyable to play and covers all levels
5 stars: Very easy to play.
5 stars: WOW. Just WOW. The perfect app. 9 diffucultys. I tried soo many other sudoku apps and they are all so damn easy. I could beat the hardest lvl in less then 15mins on average. But with 9 different difficulty settings this game is awesome. Although I havnt beaten Ultra Extreme as of yet. Extreme is an amazing difficulty. Very Hard still good but only takes 15 - 20mins on average.
5 stars: Best Sudoku puzzle solving game I've ever played! Only one I've found that easily let's you correct mistakes, quickly swap between pencil mode and enter mode, and has hints that lead you to the answer -- it doesn't just give you the answer. Lots of additional other boards with different rules for solving. Step by step instructions for solving every possible situation in the tutorial. A++ in my books!
4 stars: I am learning a lot from this app. I would like some more tools to help find patterns. E.g. something to mark chains. Also It would be better if the hints could initially be less explicit. E.g. \
5 stars: This app is AMAZING. The tutorials and hints work! Only if you want them to ;) Its hard to say if someone can burn through the pre-programmed puzzles but hey, theres the manual ...