# Harmonious vs ScaleMate

The clearest difference is update cadence: ScaleMate at fortnightly against Harmonious's every 3 months. ScaleMate also leads on ratings volume (24 vs 6) and price ($3.99 vs $4.99). Harmonious's advantage is rating (5.0 vs 4.8) and iOS requirement (10.3 vs 17.5). On review sentiment, ads, in-app purchases and monetization model there is nothing between them.

Harmonious costs $4.99 and ScaleMate $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

Harmonious holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 6 and 24 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Harmonious ships an update every 3 months, ScaleMate fortnightly. Both last shipped on October 24, 2026.

## The numbers

| Metric | Harmonious | ScaleMate |
| --- | --- | --- |
| Price | $4.99 | **$3.99** |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/harmonious-music-theory/id1335459208/reviews)** | [4.8 (24 ratings)](https://appshunter.io/ios/app/scalemate-visualize-harmony/id1538285671/reviews) |
| Number of ratings | 6 | **24** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Fortnightly** |
| Monetization | Paid | Paid |
| Size | 38 MB | 36 MB |
| Requires iOS | **10.3** | 17.5 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Jared Updike](https://appshunter.io/developer/1335459207) | [Anton Schwartz](https://appshunter.io/developer/1330331588) |

## What reviewers say

### Harmonious

[App page](https://appshunter.io/ios/app/harmonious-music-theory/id1335459208)

This app provides an exhaustive reference for piano and guitar chords and scales, designed for musicians and students. It offers interactive tools, tutorials, and visualizations to explore music theory concepts, from basic harmony to advanced set theory.

**Highlights:** Interactive piano and guitar chord/scale search, Dozens of tutorials and glossary entries, Interactive circle of fifths reference, Audio examples and instrument toggling, Visualizations of scale and mode relationships, Roman numeral functions and chord analysis

**Features:** macOS Compatibility

**In-app purchases:** none


### ScaleMate

[App page](https://appshunter.io/ios/app/scalemate-visualize-harmony/id1538285671)

This app provides an interactive reference for understanding music scales and jazz harmony. It allows users to hear, visualize, and manipulate scales to deepen their comprehension of musical concepts. Features include expert write-ups, practical usage tips, and animated transformations between scales.

**Highlights:** Hear scales as melodies, Visualize scales on circle of fifths, Expert scale write-ups, Manipulate scales and hear changes, Full library of scales, Automatic scale recognition, Animated scale transformations

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

**In-app purchases:** none


## Frequently asked questions

### Is Harmonious free?

Harmonious costs $4.99, with no in-app purchases.

### Is ScaleMate free?

ScaleMate costs $3.99, with no in-app purchases.

### Which has better reviews, Harmonious or ScaleMate?

Harmonious is rated higher. Harmonious averages 5.0 out of 5 from 6 ratings, while ScaleMate averages 4.8 from 24 ratings.

### Do Harmonious or ScaleMate have ads?

Neither Harmonious nor ScaleMate shows ads.

### Which is updated more often, Harmonious or ScaleMate?

Harmonious ships an update every 3 months, and ScaleMate fortnightly. Most recently, Harmonious was updated on October 24, 2026 and ScaleMate on October 24, 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.*