i.Sudoku

Sudoku is a clean, relaxing number puzzle game for daily brain training. Play classic Sudoku at your own pace with smooth controls, clear boards, and helpful tools designed for iPhone and iPad. Features: - Daily Challenge with a fresh 9x9 puzzle every day - Easy 4x4, Medium 6x6, Hard 9x9, and Expert 9x9 modes - Notes, hints, undo, erase, pause, and continue saved game - Mistake tracking, timer, score, stats, streaks, and leaderboard - Thai and English interface based on your device language - Calm visuals, gentle sound effects, and relaxing background music Whether you want a quick puzzle or a harder logic challenge, Sudoku gives you a polished board, readable numbers, and satisfying progress every day.