Sudoku Harmonic
Sudoku With Solfeggio Tones
Free · Designed for iPad. Not verified for macOS.
Experience Sudoku in a completely new way. Each number you enter plays a Solfeggio tone, creating a relaxing, immersive, and meditative sound-based puzzle experience.
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.
Added grayscale mode
The developer, Qi Machine LLC, 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.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Qi Machine LLC
- Size
- 5.5 MB
- Category
- Puzzle
- Compatibility
Requires iOS 18.6 or later.
- iPhone
Requires iOS 18.6 or later. - iPad
Requires iPadOS 18.6 or later. - Mac
Requires macOS 15.6 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 2.6 or later.
- iPhone
- Languages
- English
- Age Rating
4+
- 4+
- Copyright
- © 2025 Qi Machine LLC.