Sudoku - Daily Logic Puzzle

Classic Sudoku you can play fully offline, with no ads during play. A new Daily Challenge each day, four levels from Easy to Expert, plus notes and hints when you want them.

Play on your commute or unwind in a quiet moment. Choose your difficulty and enjoy a satisfying logic puzzle.

FEATURES
• Four difficulties: Easy, Medium, Hard, and Expert
• Daily Challenge: a new puzzle each day, with a completion streak. The first 7 days after install use a gentler set
• Tools: auto error check with an adjustable mistake limit (or none), highlight matching numbers, notes, auto-fill candidates, undo, erase, timer, and sound
• Quick tutorial: learn rows, columns, and boxes in about 30 seconds
• Sudoku Academy: free basic lessons on the board. Intermediate and advanced lessons are part of Premium
• Light and dark themes are free and can follow the system. Completed digits are dimmed on the keypad
• Puzzles are stored on your phone. No ads during play
• Each difficulty keeps its latest unfinished game. Stats cover games completed, best time, average time, and streaks
• No account required

HOW TO PLAY
Fill the empty cells of the 9×9 grid with the digits 1–9. Each row, each column, and each 3×3 box must contain every digit once.
Some cells are already filled. Those clues stay in place. Complete the rest with logic, not arithmetic.
A placement is wrong if the same digit appears twice in a row, a column, or a 3×3 box. Every standard puzzle has a unique solution.

FREE TO PLAY
Classic Sudoku, Daily Challenge, notes, timer, and stats are free. Basic Academy lessons are free. Free players get 3 hints per day (as shown in the app).

PREMIUM
• Unlimited hints
• Intermediate and advanced Academy lessons
• Premium themes: Mint Green, Pure Black, Retro Amber, Vibrant Orange, and Glacier Blue

Plans (pricing and any free trial are shown in the app and on Google Play):
• Monthly Premium: auto-renewing subscription
• Yearly Premium: auto-renewing subscription (a free trial may be offered)
• Lifetime Premium: one-time purchase, no recurring charge

Subscription terms:
• Payment is charged to your Google account when the purchase is confirmed
• Subscriptions renew automatically unless you cancel at least 24 hours before the end of the current period in Google Play > Payments & subscriptions
• Renewal is charged within 24 hours before the period ends
• You can manage or cancel the subscription in Google Play
• Any unused part of a free trial may be forfeited if you switch to a paid plan
• For refunds and billing, use Google Play Help

Download and start today's puzzle.

LEGAL
• Privacy Policy: https://zhimastudio.com/sudoku/privacy-policy.html
• Terms of Service: https://zhimastudio.com/sudoku/terms-of-service.html

By using this app, you agree to these terms.