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Screenshots

  • Sudoku Harmonic screenshot 1
  • Sudoku Harmonic screenshot 2
  • Sudoku Harmonic screenshot 3
  • Sudoku Harmonic screenshot 4

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.

More Threadline and other daily puzzles on Fiplay →

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.

Sudoku Harmonic vs. alternatives
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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

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