# Harmonizer vs Musyc

The clearest difference is in-app purchases: Harmonizer at none against Musyc's 5. Musyc's advantage is review sentiment (78% vs 45%) and update cadence (every 2 months vs every 33 months). On price and ads there is nothing between them.

Both are free to download. Musyc sells 5 one-off in-app purchases. Harmonizer asks for nothing beyond the download.

Musyc holds the better App Store score, 4.5 against 4.1. That said, the two scores are not equally well evidenced: Musyc has 83 ratings behind it against 16, so its average is the more settled of the two. Written reviews point the same way: 45% of Harmonizer's written reviews are positive against 78% of Musyc's.

Harmonizer ships an update every 33 months, Musyc every 2 months. Both last shipped on November 1, 2026.

## The numbers

| Metric | Harmonizer | Musyc |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (16 ratings)](https://appshunter.io/ios/app/harmonizer/id393762975/reviews) | **[4.5 (83 ratings)](https://appshunter.io/ios/app/musyc-physics-music-maker/id489836689/reviews)** |
| Number of ratings | 16 | **83** |
| Positive reviews | 45.5% of reviews | **78.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 33 months | **Every 2 months** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 3 MB | 82 MB |
| Requires iOS | 17.0 | **15.6** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Matthew McLaughlin](https://appshunter.io/developer/1671041622) | [Fingerlab](https://appshunter.io/developer/412786610) |

## What reviewers say

### Harmonizer

[App page](https://appshunter.io/ios/app/harmonizer/id393762975)

This app helps infants develop perfect pitch by playing Shepard tones, aiding in pitch identity development. It also facilitates the study of chord relationships and displays the pitch of your singing.

**Highlights:** Shepard tone playback, Pitch identity development, Chord relationship study, Vocal pitch display, Infant music education

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Musyc

[App page](https://appshunter.io/ios/app/musyc-physics-music-maker/id489836689)

Transform touch gestures into music by drawing shapes and interacting with bouncing sounds. Explore a vast library of unique instruments and innovative physical tools to create and mix your own audio compositions. Record, export, and share your musical creations in high quality.

**Highlights:** Draw shapes to create music, 88 unique instruments, Physical and music tools, Audio track mixer, 2 effect channels with 5 effects, User sound kit with sample import, Real-time audio recording, Video recording and export

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| More Soundkits | $3.99 | one-time |
| Additional shapes | $3.99 | one-time |
| Motion Recorder | $3.99 | one-time |
| USER SOUNDKITS | $3.99 | one-time |
| Full Version | $9.99 | one-time |

**What reviewers like**

- 🚀 Experimental music is fantastic
- 👍 Fun and creative
- 👍 Visually appealing
- 👍 Relaxing and calming
- 👍 Unique and innovative concept

**What reviewers complain about**

- 🐛 Crashes and freezes
- 🐛 Audio issues and distortion
- 🐛 Compatibility problems with older devices
- 💡 Limited customization and sound options
- 💡 Lack of MIDI/Audiobus support

**Reported bugs**

- Crashes when trying to export/share
- Audio issues on older devices
- Freezes and UI problems in the tutorial

**Requested features**

- MIDI implementation
- Audiobus support
- More sequence mix rows
- Custom sound samples and synth engine
- Ability to export videos


## Frequently asked questions

### Is Harmonizer free?

Harmonizer is free to download, with no in-app purchases.

### Is Musyc free?

Musyc is free to download, with in-app purchases available.

### Which has better reviews, Harmonizer or Musyc?

Musyc is rated higher. Harmonizer averages 4.1 out of 5 from 16 ratings, while Musyc averages 4.5 from 83 ratings.

### Do Harmonizer or Musyc have ads?

Neither Harmonizer nor Musyc shows ads.

### Which is updated more often, Harmonizer or Musyc?

Harmonizer ships an update every 33 months, and Musyc every 2 months. Most recently, Harmonizer was updated on November 1, 2026 and Musyc on November 1, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*