5 stars: Intuitive user interface that's simple yet complete and easy to play. Enjoyable experience.
4 stars: I haven't found another Sudoku app that has all the features this one has. That being said, it's unplayable without the Play Pass from Google. I have the play pass, and can play without the annoying ads. As such, I am very happy with this app. The customizations available are awesome, night mode is essential to me, and I really like the bookmarking feature. Without the ads, it's truly the best Sudoku app around.
5 stars: This is one of the better versions, you play against a clock. It will not penalize you for making mistakes.
5 stars: Excellently done! Great feature set: you can import/create your own puzzle, it has all needed help features, like auto-fill possible candidates, remove candidate when number filled in on line/col, highlight fields etc. I searched through a lot of sudoku apps before i found this one, with all my requirements met. Great app!
5 stars: My favourite sudoku app by far. Something I'd love to see added if possible. I limit notation to Snyder and only fill out candidates when truly desperate. I'd love it if the hint system could tell you that something 'standard' (hidden, naked single etc) was available without showing you where. Does that make sense?
3 stars: All of a sudden, deeply unpleasant smiley/frowny faces keep popping up. Please allow for them to be disabled!
5 stars: This is by far the very best Sudoku app I hav...