Sudoku9 free

It provides ease of use and almost every feature you can imagine.
Enjoy infinite number of sudoku games with powerful features all your life.
Everyday world sudoku competition

Features

- 5 type of Sudoku games
Original sudoku
Greater than sudoku
Killer sudoku
Calculation sudoku
Symbol sudoku

- Daily Sudoku
Playing same sudoku puzzles with worldwide users everyday

- Facebook/Twitter Integration
Record share on Facebook
Puzzle share on Facebook
Record share on Twitter
Puzzle share on Twitter

- Play again, Watch replay


- Provides infinite number of puzzles at all levels.
Provides infinite number of puzzles and you can play it all your life.

- You can choose game level among 5 different levels

- Auto saving
Always the state of games will be saved and then you can see the last screen when you restart the game.

- Memo for candidate numbers
You can enter candidate numbers in a cell that you don't know the answer immediately. It will help you to play the game.

- Auto memo
Auto memo is provided. So you can progress the game quickly.

- Recording game score
Score of the game is recorded and managed.

- Resetting game
If you screw up the game, you can initialize the game.

- Unlimited undo/redo
You can go back previous status using undo/redo function.

- Multiple bookmarks
You can move to saved position using bookmark. You can save 5 bookmarks.

- Supporting 5 languages (English, Korean, Japanese, 2 Chinese)

- Hint function
Hint function tells you the answer of a cell when you meet a difficult cell. One hint is provided every 20 minutes.

- Display duplicate numbers
When you enter a duplicate number, the number will be displayed with different color. It will help you to play games.

- Full support for Retina display
Provides clear screen with supporting Retina display

- When you double tap the screen the mode will be changed to memo mode

- Display with different color where you need to compare the numbers.
The cells that you should compare the numbers will be painted with different color. It will help you to play games.

- Game Center integration
Check worldwide rankings, the best time ranking in each levels
Backup best time and total score to Game Center

- Various settings
Sound Effects On / Off, change the language, etc.

- Feedback function
You can report a bug or your opinion, and are able to communicate with the developer.

- iOS8 support
- iPhone 6, iPhone 6 Plus support
- World ranking page