Sudoku Offline: Auto Notes

🧩 Classic sudoku — daily challenge, notes & achievements.

Play Mini 4×4, Simple 6×6, and Easy / Medium / Hard 9×9. Use notes, auto-notes, hints, and undo. Take the daily puzzle (shared by date), unlock achievements, and resume mid-game. Offline-friendly logic puzzle.

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👤 WHO IT'S FOR

🧠 Logic puzzle fans and sudoku beginners to experts
📅 Players who want a fresh daily sudoku
⚡ Anyone searching for a sudoku game, daily sudoku, or offline brain puzzle

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🕹️ MODES & DIFFICULTY

🟦 Mini 4×4 — quick warm-up
🟩 Simple 6×6 — step up from mini
⬜ Easy / Medium / Hard 9×9 — classic sudoku
📅 Daily challenge — seeded by date, Medium 9×9 for everyone

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✨ FEATURES

📝 Notes & auto-notes (candidate fill)
💡 Hints when you’re stuck
↩️ Undo (up to 30 steps) · Erase
⚠️ Mistake limits — 3, 5, or unlimited
🎨 Board themes — Classic, Night, Paper
🔆 Highlight same numbers
💾 Save & resume mid-puzzle
🏆 7 achievements (first win, daily streaks, no mistakes, Hard, speed run & more)
📜 History & share your win
📖 How to play guide built in

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✨ WHY INSTALL

📴 Play offline after install
🔓 No account required
🎨 Light / Dark / System theme
⚡ Clean, distraction-light sudoku

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🚀 Fill the grid. Beat the daily.

Mini ✅ 6×6 ✅ 9×9 ✅ Daily ✅ Auto-notes ✅ Achievements ✅

👉 All from Sudoku.

No ads.

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💡 TIPS FOR BETTER SOLVING
• Start with rows, columns and boxes that are almost full.
• Turn on auto-notes, then remove candidates as you place digits.
• Look for naked pairs: two cells in one unit with the same two candidates.
• Play the daily challenge as a short brain-training routine.
• Mini 4×4 and 6×6 boards are a gentle start for kids and beginners.

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❓ FAQ
Does it work offline?
Yes. Everything runs on your phone after install; no Wi‑Fi or mobile data needed.
Are there ads, in-app purchases or subscriptions?
No. There are no ads, no in-app purchases, no subscription and no account. Nothing is locked behind a payment.
What data does the app collect?
Only anonymous crash reports and usage statistics (Firebase) that help us fix bugs. Your progress stays on your device.
Will it drain my battery or fill my storage?
No. The download is small, and nothing runs in the background except the reminders or widgets you choose to turn on.
Dark mode? Languages?
Light / Dark / System theme, in English, Español, Português, Français, Deutsch, Bahasa Indonesia, 日本語, 한국어, 简体中文, 繁體中文.
If you enjoy it, a short rating on Google Play helps other people find it.

Recent changes:
🚀 Sudoku Offline: Auto Notes

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✨ WHAT'S NEW

📤 The share card gives the solved grid a larger frame
🖼️ The grid sits clear of the date and the Play QR code
✨ New home screen icon

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🙏 Thanks for playing Sudoku Offline!