Sudoku Zen - Daily Puzzles

The clean, distraction-free Sudoku you've been waiting for. **Five difficulty levels** — Easy, Medium, Hard, Expert, and Master — each tuned to give you the right amount of challenge. Easy puzzles solvable in minutes; Master puzzles that will genuinely make you think. **Daily Challenge** — A new Medium puzzle every day. Solve it, earn your badge, and come back tomorrow. **All the tools you need:** • Pencil marks — jot candidate numbers in any cell • Auto-check — highlights mistakes as you place them (optional) • Undo & Redo — backtrack without starting over • Hints — reveal a single cell when you're stuck • Timer & mistake counter — track your performance **Beautiful and distraction-free:** • Highlights the selected cell, row, column, and box • Dims completed digits so you focus on what's left • Respects your system dark/light mode preference • Haptic feedback for every interaction **Track your progress:** • Per-difficulty statistics: games played, best times, averages • Star rating (1–3) based on time and accuracy • Daily and overall streaks **No account required. No subscription. No tracking.** All gameplay happens on-device. Your data stays on your phone. ## Keywords (100 chars max) sudoku,puzzle,daily,logic,number,brain,grid,zen,classic,training,game,mental,challenge,offline ## Support URL https://github.com/ramjammigumpula/sudoku-ios/issues