5 stars: Easy to play and very responsive. Features like taking notes and seeing numbers highlighted around the board as you're playing sure helps so you don't make silly mistakes. Controlling the sound is nice for when you're in an area that is quiet and you don't want to disturb others with the sound of the game when choosing numbers.
5 stars: game without errors!
4 stars: Love the auto fill feature especially for expert level. All of a sudden I cannot x out of the ad to start the game. Same with the hints. Have u installed, restarted, etc multiple times to no avail. I want my sudoku with auto fill back.
4 stars: Highlighting make it easy to find unused squares and numbers, taking much of the challenge out of the game. I like Sudoku because it makes my brain work to solve the puzzles, This app makes it too easy to solve. But, I've only played one game on it so far. I will have to check it for more difficult puzzles. Still, it 's a fun app.
3 stars: An excellent Sudoku game but for what it is it grabs an insane amount of RAM which then causes my other apps to close. It's a simple numbers game without flashy graphics. What on Earth does it need so much RAM for?!?
3 stars: Good for Beginners who want to learn how to play. Not challenging for more experienced players. Even with all hints and helpers disabled in settings, it gives too many clues. When a row is completed correctly, it playfully highlights it. Also, it won't let you make an error, such as input...