# Harmonizer vs Ultra Musician

The clearest difference is rating: Ultra Musician at 5.0 against Harmonizer's 4.1. Ultra Musician also leads on update cadence (weekly vs every 33 months) and review sentiment (75% vs 45%). Harmonizer's advantage is in-app purchases (none vs 6) and ratings volume (16 vs 5). On price and ads there is nothing between them.

Both are free to download. Ultra Musician sells 6 in-app purchases, starting at $0.99 per month. Harmonizer asks for nothing beyond the download.

Ultra Musician holds the better App Store score, 5.0 against 4.1. Both are backed by a comparable volume of ratings — 16 and 5 respectively. Written reviews point the same way: 45% of Harmonizer's written reviews are positive against 75% of Ultra Musician's.

Harmonizer ships an update every 33 months, Ultra Musician weekly. Both last shipped on November 1, 2026.

## The numbers

| Metric | Harmonizer | Ultra Musician |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.1 (16 ratings)](https://appshunter.io/ios/app/harmonizer/id393762975/reviews) | **[5.0 (5 ratings)](https://appshunter.io/ios/app/ultra-musician/id882619692/reviews)** |
| Number of ratings | **16** | 5 |
| Positive reviews | 45.5% of reviews | **75.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 33 months | **Weekly** |
| Monetization | **Free** | Free with in-app purchases |
| Size | 3 MB | 41 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Matthew McLaughlin](https://appshunter.io/developer/1671041622) | [David Mann Music LLC](https://appshunter.io/developer/1346382452) |

## 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


### Ultra Musician

[App page](https://appshunter.io/ios/app/ultra-musician/id882619692)

Learn music theory through interactive lessons on piano, guitar, and bass. Develop skills in playing, reading music, ear training, and theory. Offers custom lessons and a free trial.

**Highlights:** Learn piano, guitar, and bass, Develop playing, reading, ear training, and theory skills, Over 800 interactive lessons, Create custom lessons, Beginner to expert progression, 30-day free trial

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Half Off Monthly Subscription | $4.99 | per month |
| Monthly Subscription | $9.99 | per month |
| Annual | $9.99 | per year |
| Half off annual subscription | $49.99 | per year |
| Annual Subscription | $99.99 | per year |


## Frequently asked questions

### Is Harmonizer free?

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

### Is Ultra Musician free?

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

### Which has better reviews, Harmonizer or Ultra Musician?

Ultra Musician is rated higher. Harmonizer averages 4.1 out of 5 from 16 ratings, while Ultra Musician averages 5.0 from 5 ratings.

### Do Harmonizer or Ultra Musician have ads?

Neither Harmonizer nor Ultra Musician shows ads.

### Which is updated more often, Harmonizer or Ultra Musician?

Harmonizer ships an update every 33 months, and Ultra Musician weekly. Most recently, Harmonizer was updated on November 1, 2026 and Ultra Musician 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.*