TSR Sudoku

A calm, focused way to play Sudoku

Four difficulties, points and badges to earn, and 23 themes to make it yours.

🎯

Four difficulties

Easy, Medium, Hard, and Expert puzzles for every skill level.

⭐

Score points

Earn 5 points for Easy up to 20 for Expert. Each mistake costs a point, so careful play pays off.

🏅

28 badges to collect

Bronze, Silver, and Gold badges for streaks, speed, skill, score, and more.

🎨

23 themes

Each with its own background and colors, from Zen Light and Sakura to Ocean, Neon, and seasonal designs.

🔷

Board styles

Play on a classic grid, rounded tiles, circles, or hexagons.

💡

Smart hints

Stuck on a puzzle? Get a hint, or watch a quick ad for a bonus one.

📊

Track your progress

Best times, 30-day bests, day streaks, and stats broken down by difficulty.

✏️

Pencil marks & notes

Jot down candidates the way you would with a pencil and paper.

📶

Works offline

No account, no login, no internet required — play anywhere.

See it in action

Home, gameplay, badges, stats, themes, and the win screen.

TSR Sudoku home screen with total score, streak and badges

TSR Sudoku puzzle solved screen with points earned

Free to play, ad-free if you want

One optional one-time purchase — no subscriptions, ever.

Free

All four difficulties, unlimited puzzles
Stats, streaks, and best times
All 23 themes, 4 board styles, and every badge
No account or sign-up required

        Remove Ads
        Removes all banner ads
Rewarded ads for bonus hints stay optional
One-time purchase, yours forever

      

Questions

Do I need an account to use the app?

No. TSR Sudoku doesn’t require sign-up or login — your puzzles, stats, and settings are stored on your device.

How does scoring work?

Each solved puzzle earns 5 points on Easy, 10 on Medium, 15 on Hard, and 20 on Expert, minus 1 point per mistake (never below zero). Your score and badges are lifetime totals and stay even if you reset your stats.

Is Remove Ads a subscription?

No. It’s a one-time purchase that removes banner ads permanently — there’s no recurring charge.

Does the app work without internet?

Yes. Once installed, every puzzle and difficulty works fully offline.

Can I use my purchase on more than one device?

Yes — use “Restore Purchases” in Settings on any device signed in with the same Apple ID or Google account used for the original purchase.

Which platforms is the app available on?

TSR Sudoku is available now for iPhone, iPad, and Android.