Cirdoku: Circular Sudoku

Daily Logic & Color Puzzles

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

Six ways to play one puzzle: Classic, Daily Challenge, Hue, Journey, Dial and Endless. Sudoku logic, bent into a circle. Cirdoku is Sudoku, reimagined on a circular grid. Instead of a square board, you work with concentric rings divided into radial sectors. Place the numbers so that no digit repeats within any ring or any sector. The logic is the same. The shape changes everything. HOW IT WORKS • Classic boards use 4 concentric rings x 8 sectors, 32 cells to fill • Each ring must contain all its numbers, with no repeats • Each sector must contain all its numbers, with no repeats • Find the one arrangement that satisfies every constraint at once SIX WAYS TO PLAY • Classic: the pure circular Sudoku puzzle • Daily Challenge: a new themed board every day, with its own twist and difficulty • Hue: the same puzzle with no numbers at all, solved entirely by color • Dial: drag whole rings to spin them and match par, scored by turns and medals • Journey: work through a progressing series of boards • Endless Mode: keep playing, with a new puzzle every time you solve one FEATURES • Fixed boards on every campaign level, so every player meets the same puzzle • Built-in Hint system: get unstuck without breaking immersion • Notes, mistake tracking and restart on any board • Fractal Zoom win animation: a satisfying reward for completing a puzzle • Clean, distraction-free interface with smooth circular interactions WHY CIRDOKU? The circular format isn't just a gimmick. It fundamentally changes how you scan for conflicts and build chains of deduction. Patterns that were automatic in square Sudoku need to be relearned. It's a fresh challenge even for experienced puzzlers. PLAY WITHOUT PRESSURE Play with three hints per board. Cirdoku Plus is an optional one-time purchase for unlimited hints. Restore purchases is available. No ads, no subscription. If you've mastered square Sudoku and want something that feels genuinely new, Cirdoku is your next step.

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This update enables the existing optional Cirdoku Plus lifetime unlock for unlimited hints. Each board includes three free hints. The price comes from the store; unavailable purchases are not replaced by a fake success. Restore purchases remains available. No subscription.

Version 1.0.9

The developer, Gustavo cesar Sola Barreto Marcelino, 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
    Gustavo cesar Sola Barreto Marcelino
    Size
    23.5 MB
    Category
    Puzzle
    Compatibility
    Requires iOS 15.0 or later.
    • iPhone
      Requires iOS 15.0 or later.
    • iPad
      Requires iPadOS 15.0 or later.
    • iPod touch
      Requires iOS 15.0 or later.
    • Mac
      Requires macOS 12.0 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 MedHub. All rights reserved.
  • Privacy Policy

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