Sudoku Logic Refined
Hints that teach you to solve
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Every hint explains the technique — what it is, why it works, how to spot it next time. 80+ techniques, a daily challenge, and a calm, ad-free board.
Most sudoku apps just hand you the answer. This one teaches you to find it yourself.
WHY IT'S DIFFERENT
Hints that teach
Open a hint and you don't just get the next number — you get the technique behind it: what it is, why it works, and how to spot it next time. Reveal it step by step, so you decide how much help you want.
80+ techniques, explained
From your first Naked Single to X-Wing, Swordfish, Y-Wing, Skyscraper, and AIC/ALS chains — every technique comes with a clear card: what it is, why it works, how to find it, and a worked example you can replay.
A daily challenge
One hand-picked puzzle a day — the same for everyone, everywhere.
Curated, uniquely-graded puzzles
Five difficulties from Easy to Master. Every puzzle is validated for a single solution and graded by the hardest technique it needs — pure logic, never guessing.
Step-by-step replay
Watch any puzzle solved one logical step at a time, and see exactly where each technique applies.
Calm and focused
A clean, distraction-free board. No banners, no pop-ups, no clutter — just you and the logic. Play fully offline.
MADE FOR PEOPLE WHO WANT TO IMPROVE
• Learn solving techniques the right way
• Crack hard puzzles with logic alone
• A board that gets out of your way
SUDOKU PRO
Try everything free for 3 days, then keep unlimited hints, the full technique library, step-by-step replay, and the daily challenge.
• Monthly — $4.99 (3-day free trial)
• Yearly — $24.99 (3-day free trial · save 58%)
• A one-time unlock is also available.
Payment is charged to your Apple Account at confirmation of purchase. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period; your Apple Account is charged for renewal within 24 hours before the period ends. Manage or cancel anytime in your Apple Account settings. Any unused portion of a free trial is forfeited when you purchase a subscription.
Terms of Use: https://sudoku.app/terms
Privacy Policy: https://sudoku.app/privacy
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, 天信 王, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 天信 王
- Size
- 2.9 MB
- Category
- Puzzle
- Compatibility
Requires iOS 17.0 or later.
- iPhone
Requires iOS 17.0 or later. - iPad
Requires iPadOS 17.0 or later. - Mac
Requires macOS 14.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Sudoku Pro Monthly $4.99
- Sudoku Pro Yearly $24.99
- Sudoku Pro $7.99
- Copyright
- © 2026 Curry