Windoku. Hyper Sudoku.

Hyper Sudoku, 4 Extra Windows

Free · In‑App Purchases

Hyper Sudoku with four bold window regions. Beautiful new typography, striking dark blue windows, and smart hints — the most elegant Windoku experience. Windoku is Hyper Sudoku — classic 9x9 Sudoku elevated by four shaded window regions that transform how you solve every puzzle. The four coloured windows are placed symmetrically inside the grid, each a 3x3 region that must also contain digits 1-9 without repetition. That gives you 13 constraint regions instead of the standard 9 — and it changes everything. Cells inside a window carry extra logical weight, the windows overlap with standard boxes and lines in ways that unlock powerful deductions, and the coloured grid is simply beautiful to look at. If you love Sudoku and want something visually fresh and logically richer, Windoku is for you. FOUR SHADED WINDOWS • 4 extra 3x3 regions placed symmetrically inside the grid • 13 total constraint regions — 9 standard plus 4 windows • Windows overlap rows, columns, and boxes — creating uniquely powerful logic • Also known as Hyper Sudoku, Window Sudoku, and NRC Sudoku SIX DIFFICULTY LEVELS • Easy: The windows guide you with extra constraints — perfect for newcomers • Medium: A satisfying daily challenge for regular solvers • Hard: Window logic becomes essential — not just helpful • Expert: Advanced techniques required across all 13 regions • Pro: Push your limits with multi-region elimination chains • Master: The ultimate test for dedicated puzzle solvers DAILY CHALLENGES • A fresh Windoku puzzle every single day • Build your streak and track progress on the calendar • Compete on global leaderboards and see how you rank worldwide TECHNIQUE LIBRARY • Learn the solving techniques that make window logic click • Interactive tutorials with real puzzle examples • Smart hints that explain the reasoning, not just the answer • Campaign mode with progressive levels from beginner to master ELEGANT DESIGN • Coloured windows make the grid immediately eye-catching • Clean, distraction-free interface lets you focus on solving • Twelve beautiful color themes with light and dark variants • Smooth animations and responsive native feel • Dark mode for comfortable late-night sessions SMART TOOLS • Pencil marks and inline candidates for noting possibilities • Unlimited undo and redo — experiment freely • Error highlighting to catch mistakes early • Auto-save so you never lose your progress • Highlight matching numbers to spot patterns instantly PLAY YOUR WAY • Works completely offline — play anywhere, anytime • No account required to start playing • Free to play with no paywalls blocking content • Cloud sync keeps your progress safe across devices WHY WINDOKU Windoku takes the logic you already love about Sudoku and adds a visual layer that changes how you think. The windows are not just decoration — they are powerful constraints that make hard puzzles solvable and easy puzzles richer. Once you play Windoku, standard Sudoku feels like it is missing something. Download free and discover what four extra windows can do. Terms of Use: https://www.locksmithcreativemilan.com/windoku/legal/terms-of-service.html

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What's New in v2.2.3: • New ZillaSlab typography with lining figures for crisp, aligned numbers • Bold hyper region colors — dark blue windows with light numbers across all themes • High contrast mode: fully inverted window regions for maximum visibility • Share menu now fully visible with proper icon rendering • Updated Reddit sharing with clearer grid format • Bug fixes and performance improvements Thank you for playing Windoku!

Version 2.2.3

The developer, MICHAEL CHARLES LOCKYER, 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:

    • Usage Data

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • Contact Info
    • Identifiers

  • Data Not Linked to You

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

    • Identifiers
    • Usage Data
    • Diagnostics

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

The developer indicated that this app supports the following accessibility features. Learn More

  • Supported Features

    • Larger Text

    • Dark Interface

    • Differentiate Without Color Alone

    • Sufficient Contrast

    • Reduced Motion

Information

Seller
  • MICHAEL CHARLES LOCKYER
Size
  • 160.6 MB
Category
  • Puzzle
Compatibility
Requires iOS 13.0 or later.
  • iPhone
    Requires iOS 13.0 or later.
  • iPad
    Requires iPadOS 13.0 or later.
  • iPod touch
    Requires iOS 13.0 or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
English and 32 more
  • English, Arabic, Catalan, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hindi, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
Age Rating
4+
In-App Purchases
Yes
  • Windoku Premium Yearly $17.99
  • Windoku Premium Monthly $2.99
  • Learn More
Copyright
  • © 2026 Locksmith Creative Milan
  • Developer Website
  • Privacy Policy

    • Supports

    • Game Center

      Discover new games and play with friends. This game also features leaderboards.

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