Sudoku is a fun and challenging puzzle game played by millions worldwide. It's a great way to exercise your brain, keep your mind active and engaged, or just to pass the time.

'Sudoku Challenge' is the classic puzzle game in an easy to use and fun to play app. Designed for both beginners and experts, this app is the classic puzzle game at its best. You can even share a puzzle with friends to play the same one.

Features:
- Unlimited offline Sudoku puzzles with five carefully curated difficulty levels.
- Share puzzles with friends to challenge them on the same puzzle.
- Build a 'daily streak' by playing every day.
- Apple Pencil support - just handwrite numbers on the puzzle where they belong
- Choose between allowing errors (like playing on paper) or 'arcade mode' that prevents mistakes
- Advanced note features including auto-fill notes, highlight notes, strike-through notes