Sudoku Duo: Classic & Diamond

Daily puzzles & logical hints

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Classic or Diamond: solve a daily puzzle, follow hints that explain the logic, and practice the next technique. Now with 50 language and region options. Sudoku Duo brings two views to the classic number puzzle: a familiar square grid and an adjustable Diamond board with a signature 30° view. Solve daily Sudoku, follow the logic and discover your next technique. A BOARD THAT FITS YOU Choose Diamond or classic style and save separate portrait and landscape preferences. In landscape, controls move beside the board to give the puzzle more room. Hold a cell to inspect nearby numbers without changing your answer. SEE WHY THE NEXT MOVE WORKS Hints guide you through observation, reasoning and the conclusion. Follow the highlighted evidence, compare candidates and reveal the answer when you are ready. LEARN TO FIND IT YOURSELF Practice spotting the right cell and digit, instead of following a marked answer. Explore techniques from singles and pairs to advanced patterns. Ask for a clue when you need one, then try a new exercise independently. MAKE YOUR PROGRESS VISIBLE Earn achievements through solving, daily challenges and technique practice. See exactly what each milestone requires and jump straight into the matching activity. FIND YOUR FLOW Double-tap an empty cell to open a nearby number pad. Add candidate notes, highlight related cells, undo a move, or pause whenever you need. Gentle tips on the actual interface introduce the gestures as you play. A LITTLE CHALLENGE, EVERY DAY Take on the daily puzzle or choose from six difficulty levels, Very Easy to Master. Track your progress and achievements, or bring in another puzzle from text or a photo. PLAY AT YOUR PACE Choose from 50 language and region options in Settings, or follow your device language. Switch without losing your current puzzle. Play offline without creating an app account. Progress can sync privately through iCloud. Choose light or dark appearance and use larger text on iPhone and iPad. All puzzles, difficulty levels, hints, lessons and import tools are available in the free version. It may show portrait banners and an interstitial after a completed or ended game. One optional lifetime Premium purchase removes ads. No subscription.

Ratings & Reviews

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• Play in 50 language and region options, with carefully revised interface text and explanations. • Change language instantly in Settings, or follow your device language. • Enjoy clearer number, date and plural formatting, plus improved Arabic, Hebrew and Urdu layouts. • Keep your current puzzle, notes and undo history when switching languages.

Version 1.3

The developer, Wenbin lei, 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:

    • Location
    • Identifiers
    • Usage Data
    • Diagnostics

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Diagnostics

Privacy practices may vary, for example, based on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

For more information, visit the developer’s accessibility website .

Information

Seller
Wenbin lei
Size
17.4 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.
Languages
English and 43 more
  • English, Arabic, Bengali, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Gujarati, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Kannada, Korean, Malay, Malayalam, Marathi, Norwegian Bokmål, Oriya, Polish, Portuguese, Punjabi, Romanian, Russian, Simplified Chinese, Slovak, Slovenian, Spanish, Swedish, Tamil, Telugu, Thai, Traditional Chinese, Turkish, Ukrainian, Urdu, Vietnamese
Age Rating
4+
In-App Purchases
Yes
Copyright
© 2026 Lei, Wenbin
  • Developer Website
  • Privacy Policy

    • Supports

    • Family Sharing

      Some in-app purchases and subscriptions may be shareable with your family group when Family Sharing is enabled. Learn More

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