Dudoku: Sudoku Brain Training
Konstanty Koszewski Games iPhoneiPadiPod touch
Dudoku: Sudoku Brain Training is a free Games app for iPhone and iPad by Konstanty Koszewski. Requires iOS 16.6. Updated February 18, 2026.
- Price
- Free
- on the App Store
- Size
- 18 MB
- Age 4+
- Updated
- Feb 18
- 2026 · v1.0.4
Screenshots
About Dudoku: Sudoku Brain Training
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/
What’s new
Version 1.0.4 · Updated February 18, 2026
- Stability improvements and optimized performance for a smoother experience. - New Icon
App privacy
The developer, Konstanty Koszewski, reported these privacy practices to Apple.
Data Used to Track You
The following data may be used to track you across apps and websites owned by other companies:
- Identifiers: Device ID
Data Linked to You
The following data, which may be collected and linked to your identity, may be used for the following purposes:
- Identifiers: Device ID, User ID
- Usage Data: Product Interaction, Advertising Data
- Purchases: Purchase History
Used for: Third-Party Advertising, Developer’s Advertising or Marketing, Analytics, App Functionality
Data Not Linked to You
The following data, which may be collected but is not linked to your identity, may be used for the following purposes:
- Diagnostics: Crash Data, Performance Data
Used for: Analytics, App Functionality
Alternatives to Dudoku: Sudoku Brain Training
Looking for apps like Dudoku: Sudoku Brain Training? Here are 6 similar apps on the App Store. The highest rated is Sudoku: Learn to Master (5.0/5), and all 6 are free to download.
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Sudoku: Learn to Master
5.0
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Sudoku Master Plus
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SudokuVerse
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Sudoku Kuro
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Sudoku Waterfall
5.0
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Games 5 Seconds
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Dudoku: Sudoku Brain Training | – | Free | February 18, 2026 | |
| Sudoku: Learn to Master | 5.0 / 5 (2) | Free | Oct 19, 2026 | Compare |
| Sudoku Master Plus | – | Free | Sep 15, 2026 | Compare |
| SudokuVerse | – | Free | May 19, 2026 | Compare |
| Sudoku Kuro | – | Free | Mar 23, 2026 | Compare |
| Sudoku Waterfall | 5.0 / 5 (1) | Free | Jan 27, 2026 | Compare |
| Games 5 Seconds | – | Free | Dec 11, 2023 | Compare |