# HarpNinja Diatonic Harmonica vs Chromatic Harmonica PRO

The clearest difference is review sentiment: Chromatic Harmonica PRO at 75% against HarpNinja Diatonic Harmonica's 29%. Chromatic Harmonica PRO also leads on price (Free vs $19.99) and update cadence (every 10 days vs every 9 months). HarpNinja Diatonic Harmonica's advantage is in-app purchases (none vs 9) and chart position (#193 vs unranked). On ads and device support there is nothing between them.

Chromatic Harmonica PRO is free to download; HarpNinja Diatonic Harmonica costs $19.99 up front. Chromatic Harmonica PRO sells 9 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, Chromatic Harmonica PRO every 10 days. The most recent releases landed on September 21, 2026 and August 21, 2026 respectively.

## The numbers

| Metric | HarpNinja Diatonic Harmonica | Chromatic Harmonica PRO |
| --- | --- | --- |
| Price | $19.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/chromatic-harmonica-pro/id6503302261/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | 28.6% of reviews | **75.0% of reviews** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 10 days** |
| Monetization | Paid | **Freemium** |
| Best chart rank | **#193** | — |
| Size | 130 MB | 53 MB |
| Requires iOS | **13.0** | 15.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| 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


### Chromatic Harmonica PRO

[App page](https://appshunter.io/ios/app/chromatic-harmonica-pro/id6503302261)

Master jazz harp with this comprehensive trainer. Practice scales and arpeggios in any key with accurate MIDI playback and interactive visual grids. Create custom routines and explore a vast library of musical exercises.

**Highlights:** Practice scales and arpeggios in any key, Accurate MIDI playback, Interactive visual grid of harmonica holes and notes, Metronome with tempo control, Create and save custom training routines, Support for all tunings and hole configurations

**Features:** macOS Compatibility

**In-app purchases (9)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Plan New | $4.99 | per 7 days |
| Weekly Plan | $4.99 | per 7 days |
| Monthly | $4.99 | per month |
| Yearly Plan | $9.99 | per year |
| Half Year | $9.99 | per 6 months |
| Premium Subscription | $14.99 | per year |
| Chromatic Premium - 6 Months | $16.99 | per 6 months |
| Yearly Plan New | $19.99 | per year |
| Chromatic Harmonica Premium | $19.99 | per year |


## Frequently asked questions

### Is HarpNinja Diatonic Harmonica free?

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

### Is Chromatic Harmonica PRO free?

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

### Do HarpNinja Diatonic Harmonica or Chromatic Harmonica PRO have ads?

Neither HarpNinja Diatonic Harmonica nor Chromatic Harmonica PRO shows ads.

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

HarpNinja Diatonic Harmonica ships an update every 9 months, and Chromatic Harmonica PRO every 10 days. Most recently, HarpNinja Diatonic Harmonica was updated on September 21, 2026 and Chromatic Harmonica PRO on August 21, 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.*