Sudoku Harmonic
Qi Machine LLC Games iPhoneiPadiPod touch
Sudoku Harmonic is a free Games app for iPhone and iPad by Qi Machine LLC. Rated 5.0/5 from 2 ratings. Requires iOS 18.6. Updated December 2, 2025.
- Rating
- 5.0
- 2 ratings
- Price
- Free
- on the App Store
- Size
- 5 MB
- Age 4+
- Updated
- Dec 2
- 2025 · v1.2
Screenshots
About Sudoku Harmonic
This is Sudoku, reimagined as a gift for your senses. Sudoku Harmonic transforms the classic puzzle you love into an immersive sonic experience. Each number (1 - 9) plays its own Solfeggio frequency (174 Hz – 963 Hz), turning every move into a moment of sound that draws you deeper into focus and flow. This is the puzzle game you'll actually want to keep playing - not out of habit, but because it feels genuinely uplifting. Why players are hooked: - The audio creates a calming, satisfying rhythm as you solve - You naturally enter a state of relaxed concentration - Time passes differently—you're present, not anxious - It's mentally engaging without being draining - You finish sessions feeling centered, not depleted What makes it different: Each number triggers a specific Solfeggio tone, creating a harmonic soundscape as you play. The experience supports relaxation, mental clarity, and mindful focus - making this a puzzle game that actually enhances your state of mind rather than just filling time. Features: - Solfeggio frequencies (174 Hz - 963 Hz) mapped to each number - Beautiful, minimalist interface - Multiple difficulty levels for all skill levels - Harmonious, layered audio feedback - Customizable sound and visual settings - Light and dark modes - Clean, distraction-free design Perfect for: - Sudoku enthusiasts ready for an evolution of the classic game - Meditation and mindfulness practitioners - Anyone curious about frequency and sound experiences - People who want mental exercise that feels restorative - Those seeking a genuinely calming daily ritual Put on your headphones. Take a breath. And discover why this might become the most uplifting part of your day. Welcome to Sudoku Harmonic - where the game you love meets the frequencies that elevate it.
What’s new
Version 1.2 · Updated December 2, 2025
Added grayscale mode
Play today's Threadline puzzle
Draw one line through every cell, visiting the numbers in order. A free daily puzzle from Fiplay, same board for everyone. It plays right here, no download.
App privacy
The developer, Qi Machine LLC, reported these privacy practices to Apple.
Data Not Collected
The developer does not collect any data from this app.
Alternatives to Sudoku Harmonic
Looking for apps like Sudoku Harmonic? Here are 6 similar apps on the App Store. The highest rated is Sudoku - Mind Puzzle (5.0/5), and all 6 are free to download.
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Snap-Sudoku
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MySudoku - Number Puzzle
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Mind Game: Memory & Speed
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Sudoku - Puzzle Challenge
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Sudoku: Infinite Classic
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Sudoku - Mind Puzzle
5.0
| App | Rating | Price | Last updated | Compare |
|---|---|---|---|---|
| Sudoku Harmonic | 5.0 / 5 (2 ratings) | Free | December 2, 2025 | |
| Snap-Sudoku | – | Free | Jul 8, 2026 | Compare |
| MySudoku - Number Puzzle | – | Free | Aug 5, 2026 | Compare |
| Mind Game: Memory & Speed | – | Free | Apr 24, 2026 | Compare |
| Sudoku - Puzzle Challenge | – | Free | Feb 10, 2026 | Compare |
| Sudoku: Infinite Classic | – | Free | Sep 23, 2026 | Compare |
| Sudoku - Mind Puzzle | 5.0 / 5 (1) | Free | Oct 7, 2026 | Compare |
Compare Sudoku Harmonic with the top alternatives: ratings, updates, ASO score and keyword gaps →