Sudoku Sensei: Learn & Master
Hints that name the technique
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
On the inner screen of iPhone Duo, the board now gets a page to itself. The app teaches ten techniques, naked singles through swordfish, each with a short lesson.
I made this because I wanted hints that tell me what I missed. Tap Hint and it highlights the cells for the easiest next step and names the technique. Tap Why? for the reasoning in a sentence or two, then Apply to make the move.
With mistake checking on, a wrong digit gets a one-line reason, like "Row 4 already has a 6." If you ask for a hint while a wrong digit is still on the board, the hint points that out first.
TECHNIQUES
There are ten: naked and hidden singles, naked and hidden pairs, pointing pairs and triples, box-line reduction, naked triples, X-wing, XY-wing and swordfish. Each one gets its own page with an example board and a short lesson. A ring on the page fills as you find the technique without a hint, and after five it's full. Pro adds practice drills for each technique. Every drill is a position where you need that technique to make the next move.
iPhone Duo
Open the phone like a book and the board moves to the left page, with the number pad and hints on the right. Nothing you tap sits on the fold. The home screen, the daily puzzle calendar, Learn and Stats open into two pages as well, and on a technique page the example board faces the lesson. With the fold running across, flat or standing like a laptop, the number pad and hints go under the board. On the outer screen you get the same one-column layout as on any other iPhone.
DAILY PUZZLE
Everyone gets the same puzzle each day. Monday to Saturday it's Medium or Hard, and Sunday's is Expert. A new one starts at midnight UTC. The app keeps your streak and ticks off the days you finish on a monthly calendar, and a full month gets a trophy. If you use Game Center, your time also goes on that day's leaderboard.
ALSO
• Five levels: Beginner, Easy, Medium, Hard and Expert. A puzzle's level comes from the hardest technique it needs
• Placing a digit clears it from the notes in its row, column and box. You can turn that off
• Undo and redo
• The selected cell's row, column and box are highlighted, and so are matching digits
• Zen mode, for playing without a clock or a mistake count. You can also turn off just the timer, or just mistake checking
• Light, dark, sepia and high contrast themes, three text sizes, and a left-handed layout
• VoiceOver reads every cell, notes included
• Works on iPhone and iPad. There's no account, and your games and stats are saved on the device
FREE AND PRO
The free version has every level including Expert, the daily puzzle and all the technique lessons, and you can play as many games as you want. You get 3 hints a day. When they're used up you can watch a short video for another one, up to 3 extra a day. Other than those videos, the only ads are full-screen ones that can show up after you finish a puzzle, never more than one every three minutes. There are no banner ads.
Pro removes the ads and gives you unlimited hints, the technique drills, past daily puzzles, your full stats history and four more accent colors.
You can get Pro yearly (with a 7-day free trial), monthly, or as a one-time lifetime purchase. Family Sharing works with all three. Subscriptions renew automatically unless canceled at least 24 hours before the end of the current period. You can manage or cancel them any time in your Apple Account settings.
Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://aibrahim11.github.io/sudoku-sensei/privacy.html
Ratings & Reviews
iPhone Duo support. With the phone open like a book, the board sits on the left page and the controls on the right. The home screen, Learn, Stats, the lessons and the daily puzzle calendar are split across two pages too. Turn the phone so the fold runs across, and the controls move under the board.
The developer, Abdelrahman Ashraf, 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 Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers
- Usage Data
Data Linked to You
The following data may be collected and linked to your identity:
- Diagnostics
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Abdelrahman Ashraf
- Size
- 8.3 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+
- Contains
Advertising
- In-App Purchases
Yes
- Sensei Pro Lifetime $39.99
- Sensei Pro Monthly $4.99
- Sensei Pro Yearly $24.99
- Copyright
- © 2026 Abdelrahman Ibrahim
