Sudoku Traditional Puzzle Game
Logic training, hints & notes
Free · In‑App Purchases
With iCloud sync across iPhone and iPad. Smart hints, pencil notes, and a built-in strategy guide. Take on Challenge Mode. Free of charge, no ads, no tracking.
Sudoku - the traditional puzzle game. Smart hints, pencil notes, and a strategy guide — wrapped in a calm board that works in light and dark mode.
Designed for iPhone and iPad and tuned for people who love a clean board and a clear head.
If you get stuck - a hint which cell is solvable next is a finger tip away. Still no idea? The hint can optionally show the solution strategy to be applied for the next cell, and if the strategy name does not ring a bell, a tap on it will show an explanation.
Fill the 9×9 grid so every row, column, and 3×3 box contains each digit from 1 to 9 exactly once. Start easy or push yourself with harder difficulties. Every puzzle has a unique solution and is solvable with pure logic — no guessing required.
WHY YOU'LL LIKE IT
• Clean, distraction-free board that works beautifully in light and dark mode
• Pencil notes for tracking candidates in every cell
• Smart hints that point you toward the next logical step
• Check and show when you want a nudge — or a full answer
• Challenge Mode: no help, limited mistakes, for a real challenge
• Strategy guide built in — learn Naked Singles, Hidden Pairs, X-Wing, and more
• Auto-save — pick up exactly where you left off
• iCloud sync — your settings can stay in sync across iPhone and iPad
• Supports English and German
PLAY YOUR WAY
Choose a difficulty that matches your mood, from gentle warm-ups to demanding puzzles that reward patient logic. Toggle Challenge Mode when you want the stakes to feel real.
LEARN AS YOU PLAY
Not sure what to do next? The built-in help walks you through the rules, the controls, and the solving techniques used by seasoned players — with plain-language explanations of every strategy.
NO ADS. NO TRACKING. NO NONSENSE.
Sudoku is free to play. If you enjoy it, a friendly Tip Jar lets you say thanks — entirely optional.
Download, open, play. That's it.
Ratings & Reviews
- This app hasn’t received enough ratings or reviews to display an overview.
The developer, Detlev Voss, 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 Linked to You
The following data may be collected and linked to your identity:
- User Content
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Detlev Voss
- Size
- 3.9 MB
- Category
- Puzzle
- Compatibility
Requires iOS 26.0 or later.
- iPhone
Requires iOS 26.0 or later. - iPad
Requires iPadOS 26.0 or later.
- iPhone
- Languages
- English and German
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Big Thanks $4.99
- Large Coffee $2.99
- Small Coffee $0.99
- Copyright
- © 2026 Detlev Voss