Just Sudoku

A simple, well-made Sudoku app that gets out of your way and lets you play.

No accounts. No tutorials. No clutter. Just Sudoku.

PLAY YOUR WAY
- Three difficulty levels: Easy, Medium, Hard
- Daily challenge puzzle with streak tracking
- Undo, notes, erase, and optional hints
- Toggle highlights, auto-check, and hint buttons on or off
- Turning off assists gives you more time to earn stars

4 VISUAL THEMES
- Black — clean dark mode (default)
- White — bright and minimal
- Paper — warm, handwritten e-ink style
- Terminal — retro green-on-black console look

STARS AND STATS
- Earn 1 to 3 stars per game based on your time and settings
- Track your best times, games played, and win rate
- Build a daily streak by completing the daily puzzle

FREE TO PLAY, HONESTLY
- Watch short ads to earn play time (up to 1 hour)
- Complete the daily puzzle 3 days in a row for bonus free time
- Or remove ads forever with a single one-time purchase
- No subscriptions. No data collection. No tricks.

Your puzzles, progress, and stats stay on your device. Nothing is uploaded or shared. See our privacy policy for full details.