Huedoku: Colour Sudoku

Sudoku in calming colour

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

400 hand-tuned puzzles across four difficulty tiers — fully offline. Pay once, play forever. Place the hues, find your calm. Huedoku is Sudoku reimagined in colour. Instead of the digits 1–9, you place nine hand-picked pastel hues so that every row, every column, and every 3×3 box contains each hue exactly once. Same satisfying logic — a calmer, more tactile way to play. A PUZZLE FOR THE SENSES • No numbers, ever — nine soft hues replace the digits • Warm, considered palette designed to soothe, not shout • Smooth, gentle animations and a quietly satisfying confetti celebration when you win FOUR DIFFICULTY TIERS • Gentle — ease in with plenty of clues • Calm — a little more thinking required • Focused — for steady, deliberate solving • Deep — sparse clues and advanced deductions for experts THOUGHTFUL TOOLS • Notes mode — pencil-mark candidates in a mini-grid inside each cell • Hint system — fills the most logical next cell when you're stuck • Unlimited undo — explore freely, step back anytime • Conflict detection — strict, lenient, or off; your choice MADE FOR EVERY EYE • Optional patterns overlay adds a distinct shape to each hue, so the game plays beautifully for colour-blind players too PLAYS ANYWHERE, ANYTIME • 400 puzzles bundled in — 100 per tier • Fully offline: no internet, no account, no sign-up • Your in-progress game saves automatically — pick up right where you left off PRIVATE BY DESIGN • Pay once — no subscriptions, no in-app purchases • No ads, ever • No accounts, no sign-up • No data collected — everything stays on your device Whether you have five minutes or fifty, Huedoku turns a moment of logic into a moment of calm. Place the hues, find your flow.

Ratings & Reviews

  • 5.0
    out of 5
    1 Ratings

The developer, The IT Dept Pty Ltd, 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.

    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

    Information

    Seller
    • The IT Dept Pty Ltd
    Size
    • 21 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.
    • Mac
      Requires macOS 11.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 1.0 or later.
    Languages
    • English
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    • © 2026 CURIOLA PTY LTD
  • Developer Website
  • Privacy Policy

    • More by The IT Dept Pty Ltd

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