Dudoku: Sudoku Brain Training

Hex Sudoku, Logic & Focus

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

Calm focus: minimalist Sudoku with 16×16 HEX, Literals mode, daily challenges and collectible badges. Sharpen your logic with quiet, smart puzzles. Train focus with calm, minimalist Sudoku — now with a massive 16×16 HEX, Literals mode, daily challenges and a rich rewards system. Master your focus. Elevate your mind. Dudoku is a clean, distraction-free puzzle app for thinkers who want challenge and calm. WHY DUDOKU? • Classic Sudoku (9×9) — perfect for daily practice and quick sessions. • HEX Challenge (16×16) — a deeper test of spatial logic for advanced players. • Literals Mode — swap numbers for letters for a fresh mental twist. • Smart tools — intelligent notes, auto-check, highlights that supports play without distractions. REWARDS, CHALLENGES & PROGRESSION • Daily Challenge — a unique puzzle every day and grow your streak. • Streaks & Leaderboards — track your consistency • Collectible Badges — unlock beautifully designed badges for milestones, streaks, difficulty achievements and special events. • Milestone System — move from “First Step” bronze to the prestigious “Grand Master” gold trophy as you improve. PLAY MODES & DIFFICULTY • Playground Mode — solve freely with unlimited mistakes. Experiment, learn patterns and relax without pressure. • Challenge Mode — only 3 mistakes allowed. A focused test of accuracy, discipline and logic. DIFFICULTY LEVELS IN EVERY MODE Each puzzle mode offers three difficulty levels: • Beginner — perfect for learning and casual play. • Experienced — balanced challenge for regular players. • Expert — dense logic, minimal clues, maximum focus. FULLY CUSTOMIZABLE EXPERIENCE Play the way you prefer: • Enable or disable the timer. • Toggle number/letter highlights on the board. • Turn animations on or off. • Create a clean, paper-like experience with minimal visual aids — or keep smart assistance enabled. PREMIUM TRIAL & FEATURES Start 3-day Premium trial for uninterrupted focus: • Ad-free experience • Unlimited puzzles across all modes • Full access to advanced features and smart tools PERFECT FOR EVERY SESSION Quick brain boosts on the commute, focused practice during breaks, or deep sessions when you want to push your limits. Download Dudoku — sharpen your logic, collect badges, build a streak, and enjoy a quieter, smarter puzzle experience.Train focus with calm, minimalist Sudoku — now with a massive 16×16 HEX, Literals mode, daily challenges and a rich rewards system. Start a 3-day Premium trial. Privacy Policy: https://greenbisonstudio.web.app/privacy Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

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- Stability improvements and optimized performance for a smoother experience. - New Icon

Version 1.0.4

The developer, Konstanty Koszewski, 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:

    • Identifiers

  • Data Linked to You

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

    • Purchases
    • Identifiers
    • Usage Data

  • 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

Information

Seller
Konstanty Koszewski
Size
18.5 MB
Category
Puzzle
Compatibility
Requires iOS 16.6 or later.
  • iPhone
    Requires iOS 16.6 or later.
  • iPad
    Requires iPadOS 16.6 or later.
  • Mac
    Requires macOS 13.5 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
English and 19 more
  • English, Arabic, Danish, Dutch, Finnish, French, German, Hebrew, Italian, Japanese, Korean, Norwegian Bokmål, Polish, Portuguese, Russian, Simplified Chinese, Spanish, Swedish, Traditional Chinese, Vietnamese
Age Rating
4+
In-App Purchases
Yes
  • Dudoku Yearly Premium $19.99
  • Dudoku Monthly Premium $3.99
  • Learn More
Copyright
© 2026 Green Bison Studio
  • Developer Website
  • Privacy Policy

    • More by Konstanty Koszewski

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