# Sudoku Harmonic — Sudoku With Solfeggio Tones

> Sudoku puzzle game with Solfeggio frequencies for a calming, immersive experience. (iPhone/iPad app by Qi Machine LLC.)

- Source: https://appshunter.io/ios/app/sudoku-harmonic/id6755743522 (this page in markdown: same URL + `.md`)
- Developer: [Qi Machine LLC](https://appshunter.io/developer/1249045808)
- Category: Games, Health & Fitness, Casual, Puzzle
- Price: Free
- Age rating: 4+
- Requires: iOS 18.6 · 5 MB
- Languages: American English
- Released: 2025-11-28
- Data updated: 2026-06-06
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/sudoku-harmonic/id6755743522/reviews.md

## What is 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.

## Key features

- Solfeggio frequencies mapped to numbers
- Harmonious layered audio feedback
- Minimalist interface
- Multiple difficulty levels
- Customizable sound and visuals
- Light and dark modes

## Recent user reviews (1 of 1)

All indexed reviews: https://appshunter.io/ios/app/sudoku-harmonic/id6755743522/reviews.md

### 5/5 — Harmonic Delight

*2025-12-08*

I’ve never played Sudoku before, but a friend sent me this app and thought I’d enjoy it. Turns out—they were right. The blend of gameplay with the soothing Solfeggio frequencies hooked me instantly.

I even tried regular Sudoku afterward and realized how much harder and less fun it felt. This version’s continuous play style, mixed with its sound-frequency integration, makes the whole experience relaxing, and meditative.

Whoever created this clearly brought a more enlightened approach to Sudoku. Love it!

## Frequently asked questions about Sudoku Harmonic

### What is Sudoku Harmonic?

Sudoku Harmonic is a free Sudoku puzzle game that integrates Solfeggio frequencies with each number. This creates a unique sonic experience designed to enhance focus and promote relaxation while you play.

### How do Solfeggio frequencies work in Sudoku Harmonic?

Each number from 1 to 9 is assigned a specific Solfeggio frequency (174 Hz - 963 Hz). As you make moves in the puzzle, these tones play, creating a harmonic soundscape that aims to draw you into a state of relaxed concentration.

### Is Sudoku Harmonic suitable for beginners?

Yes, Sudoku Harmonic offers multiple difficulty levels, making it accessible for players of all skill levels, from beginners to experienced Sudoku enthusiasts.

### Can I customize the audio and visuals in Sudoku Harmonic?

Absolutely. The app features customizable sound and visual settings, including light and dark modes, allowing you to tailor the experience to your preferences.

### Does Sudoku Harmonic have ads?

No, Sudoku Harmonic is completely ad-free, providing an uninterrupted and immersive puzzle-solving experience.

### What devices is Sudoku Harmonic available on?

Sudoku Harmonic is available for iPhone and iPad devices.

### How often is Sudoku Harmonic updated?

The app was last updated on December 2, 2025, with version 1.2. This indicates a recent update, suggesting ongoing support and potential for future improvements.

### What is the age rating for Sudoku Harmonic?

Sudoku Harmonic has an age rating of 4+, making it suitable for a wide range of players.

## Version history (last 3 releases)

### 1.2 — 2025-12-02

Added grayscale mode

### 1.1 — 2025-12-01

Improved dark mode.

### 1.0 — 2025-11-29

No release notes.

## More apps by Qi Machine LLC

- [Minute Prana](https://appshunter.io/ios/app/minute-prana/id1670002558)
- [CrowSpeak](https://appshunter.io/ios/app/crowspeak/id1672870437)
- [FarmWeather](https://appshunter.io/ios/app/farmweather/id6445936214)
- [WhaleSong](https://appshunter.io/ios/app/whalesong/id6448963211)
- [QigongGPT](https://appshunter.io/ios/app/qigonggpt/id6449799495)
- [Piquet Pro](https://appshunter.io/ios/app/piquet-pro/id6476422393)

All apps by Qi Machine LLC: https://appshunter.io/developer/1249045808

## Related topics

[sudoku harmonic](https://appshunter.io/ios/topics/sudoku-harmonic)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-06.*