# HarpNinja Diatonic Harmonica vs Harmonica Study

The clearest difference is price: Harmonica Study at Free against HarpNinja Diatonic Harmonica's $19.99. Harmonica Study also leads on update cadence (every 4 days vs every 9 months). HarpNinja Diatonic Harmonica's advantage is in-app purchases (none vs 4) and chart position (#193 vs unranked). On ads and device support there is nothing between them.

Harmonica Study is free to download; HarpNinja Diatonic Harmonica costs $19.99 up front. Harmonica Study sells 4 in-app purchases, starting at $4.99 per 7 days. HarpNinja Diatonic Harmonica asks for nothing beyond the download.

HarpNinja Diatonic Harmonica ships an update every 9 months, Harmonica Study every 4 days. The most recent releases landed on September 21, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | HarpNinja Diatonic Harmonica | Harmonica Study |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | — | **[2.0 (1 ratings)](https://appshunter.io/ios/app/harmonica-study/id6747905963/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 28.6% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 4 days** |
| Monetization | Paid | **Free with in-app purchases** |
| Best chart rank | **#193** | — |
| Size | 130 MB | 113 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 12+ |
| Developer | [Sonicviz](https://appshunter.io/developer/421096824) | [Filipe Maciel Lins](https://appshunter.io/developer/1748841098) |

## What reviewers say

### HarpNinja Diatonic Harmonica

[App page](https://appshunter.io/ios/app/harpninja-diatonic-harmonica/id970927179)

**Currently charting:** #193 Top Paid · Music (US App Store)

This app helps you learn the diatonic harmonica faster with real-time pitch recognition and interactive music theory tools. Visualize notes, explore various tunings and scales, and record your playing to improve your skills.

**Highlights:** Real-time pitch recognition, Diatonic harmonica note visualization, Interactive Circle of Fifths, Support for 8 Diatonic tunings, Support for 7 Chromatic tunings, 18 Scales and 5 Chord types, Audio recorder (30 seconds)

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

**In-app purchases:** none


### Harmonica Study

[App page](https://appshunter.io/ios/app/harmonica-study/id6747905963)

Master the harmonica with real-time feedback on scales and arpeggios. This app provides guided practice, interactive charts, and a built-in metronome to improve your timing and pitch accuracy. Suitable for all skill levels, from beginners to advanced players.

**Highlights:** Real-time note feedback, Practice scales and arpeggios, Interactive harmonica charts, Built-in metronome, Adjustable tempo and repetition, Backing playback

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $4.99 | per 7 days |
| Weekly Premium | $7.99 | per 7 days |
| Yearly Premium | $24.99 | per year |
| Yearly Premium | $29.99 | per year |


## Frequently asked questions

### Is HarpNinja Diatonic Harmonica free?

HarpNinja Diatonic Harmonica costs $19.99, with no in-app purchases.

### Is Harmonica Study free?

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

### Do HarpNinja Diatonic Harmonica or Harmonica Study have ads?

Neither HarpNinja Diatonic Harmonica nor Harmonica Study shows ads.

### Which is updated more often, HarpNinja Diatonic Harmonica or Harmonica Study?

HarpNinja Diatonic Harmonica ships an update every 9 months, and Harmonica Study every 4 days. Most recently, HarpNinja Diatonic Harmonica was updated on September 21, 2026 and Harmonica Study on September 23, 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.*