# Harmonic Analysis vs NoteNerd

The clearest difference is review sentiment: NoteNerd at 100% against Harmonic Analysis's 43%. NoteNerd also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.6). Harmonic Analysis's advantage is update cadence (every 2 days vs every 2 weeks) and rating (4.7 vs 4.4). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Harmonic Analysis sells 3 in-app purchases, starting at $3.99 per month and NoteNerd sells 2 in-app purchases, starting at $9.99 per month. Whichever you choose, the download price is not the number that matters.

Harmonic Analysis holds the better App Store score, 4.7 against 4.4. Both are backed by a comparable volume of ratings — 22 and 7 respectively. Written reviews complicate that: 43% of Harmonic Analysis's written reviews are positive against 100% of NoteNerd's, so the app with the better star average is not the one people write more warmly about.

Harmonic Analysis ships an update every 2 days, NoteNerd every 2 weeks. The most recent releases landed on November 2, 2026 and November 3, 2026 respectively.

## The numbers

| Metric | Harmonic Analysis | NoteNerd |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (22 ratings)](https://appshunter.io/ios/app/harmonic-analysis-theory/id1366920484/reviews)** | [4.4 (7 ratings)](https://appshunter.io/ios/app/notenerd-voice/id6449754357/reviews) |
| Number of ratings | **22** | 7 |
| Positive reviews | 42.9% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 2 days** | Every 2 weeks |
| Monetization | Freemium | Free with in-app purchases |
| Size | 86 MB | 129 MB |
| Requires iOS | 17.6 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Deeryard LLC](https://appshunter.io/developer/966765345) | [Smashing Metronomes, Inc](https://appshunter.io/developer/1690495354) |

## What reviewers say

### Harmonic Analysis

[App page](https://appshunter.io/ios/app/harmonic-analysis-theory/id1366920484)

Master music theory with interactive exercises focused on chord and Roman numeral analysis. Practice constructing chords, analyzing progressions, and improving your musical ear through various training modes and customizable settings.

**Highlights:** Chord to Roman numeral training, Chord construction exercises, Chord construction with keyboard, Chord progression analysis, Selectable difficulty levels, Support for inverted chords, Performance reports

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Access Monthly | $3.99 | per month |
| Premium Access Yearly | $39.99 | per year |
| One-time Payment | $119.99 | one-time |


### NoteNerd

[App page](https://appshunter.io/ios/app/notenerd-voice/id6449754357)

This app provides a pocket-sized music theory lab for practicing sight-singing and ear training. It offers live pitch analysis, transposable melodic and rhythmic exercises, and a built-in notation editor for personalized practice.

**Highlights:** Sight-singing practice, Ear training exercises, Live pitch analysis, Transposable melodic exercises, Rhythmic exercises, Built-in notation editor

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pay As You Go | $9.99 | per month |
| Music Theory Pro | $99.90 | per year |


## Frequently asked questions

### Is Harmonic Analysis free?

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

### Is NoteNerd free?

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

### Which has better reviews, Harmonic Analysis or NoteNerd?

Harmonic Analysis is rated higher. Harmonic Analysis averages 4.7 out of 5 from 22 ratings, while NoteNerd averages 4.4 from 7 ratings.

### Do Harmonic Analysis or NoteNerd have ads?

Neither Harmonic Analysis nor NoteNerd shows ads.

### Which is updated more often, Harmonic Analysis or NoteNerd?

Harmonic Analysis ships an update every 2 days, and NoteNerd every 2 weeks. Most recently, Harmonic Analysis was updated on November 2, 2026 and NoteNerd on November 3, 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.*