Sudoku : Scienext app for iPhone and iPad

Sudoku is unique puzzle game experience on mobile like real sudoku on paper with pencil :)

Exercise your brain where ever you go with free Sudoku puzzle game now with 4 levels of difficulties easy, medium, hard and very hard.
Each difficulty contains several puzzle packs and each pack contains 30 puzzles now. Total 3600+ brain Sudoku puzzles.

Solve puzzles in Sudoku, Achieve the achievements, check your worldwide rank in leaderboard and compete your friends if they can solve more puzzles then you.

HOW TO PLAY:
Place numbers 1 through 9 in empty cells. Each row, column and square(3x3) needs to be filled with numbers 1 through 9, without repeating any numbers within the row, column or square(3x3)
When whole sudoku puzzle cells filled with solution without any errors, Puzzle solved!!
Choose your favorite input mode : Number first or cell first to play easy sudoku.

Sudoku game Features:
- Daily sudoku challenge. Solve sudoku once per day
- Multiple input methods : select cell first & select number first
- Multiple Themes
- Night/Dark mode
- 4 levels of difficulties Easy, medium, hard and very hard.
- Auto-save if you leave a sudoku unfinished
- Unlimited Undo option
- Use Hint where you are stuck in game
- Highlighting of a row and column related to the selected cell
- Highlighting of Similar numbers in a cell
- Automatic error detection of numbers which fail to match final sudoku solution
- Control Auto remove notes from settings
- Highlight Repeated numbers in each column, row and block
- Eraser to get rid from mistakes made
- Turn on/off time during game play
- Use Pencil to make notes
- Play Sudoku offline and online
- Reset puzzle at any point
- Simple tutorial to learn how to play sudoku