# Pitch trainer vs Harmony Keyboard

The clearest difference is update cadence: Pitch trainer at every 4 days against Harmony Keyboard's monthly. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Pitch trainer sells 7 one-off in-app purchases and Harmony Keyboard sells 1 in-app purchase, starting at $0.49 per month. Whichever you choose, the download price is not the number that matters.

Pitch trainer ships an update every 4 days, Harmony Keyboard monthly. The most recent releases landed on October 14, 2026 and October 6, 2026 respectively.

## The numbers

| Metric | Pitch trainer | Harmony Keyboard |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (415 ratings)](https://appshunter.io/ios/app/pitch-trainer-harmonize/id965614965/reviews)** | — |
| Number of ratings | **415** | — |
| Positive reviews | 68.3% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | **Every 4 days** | Monthly |
| Monetization | Free with in-app purchases | — |
| Size | 54 MB | 45 MB |
| Requires iOS | **14.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 9+ | 4+ |
| Developer | [Toshihiko Arai](https://appshunter.io/developer/415194231) | [SINCLAIR SYSTEM](https://appshunter.io/developer/1794147761) |

## What reviewers say

### Pitch trainer

[App page](https://appshunter.io/ios/app/pitch-trainer-harmonize/id965614965)

Develop perfect and relative pitch with this ear training app focused on just intonation. Learn to identify and match harmonic intervals by ear, moving beyond equal temperament. Ideal for musicians and singers seeking precise intonation.

**Highlights:** Just intonation ear training, Perfect and relative pitch development, Double-stop note learning, Harmonic interval matching, Beat-based tone adjustment

**Features:** Vision Pro support

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Buy a coffee | $4.99 | one-time |
| Unlock Moon Stage | $4.99 | one-time |
| Unlock all Rhythm stages | $4.99 | one-time |
| Support generously | $9.99 | one-time |
| Unlock All PRO Features | $9.99 | one-time |
| Remove Ads | $9.99 | one-time |
| Support a lot | $29.99 | one-time |


### Harmony Keyboard

[App page](https://appshunter.io/ios/app/harmony-keyboard/id6745786039)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Version | $0.49 | per month |


## Frequently asked questions

### Is Pitch trainer free?

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

### Is Harmony Keyboard free?

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

### Do Pitch trainer or Harmony Keyboard have ads?

Both Pitch trainer and Harmony Keyboard show ads.

### Which is updated more often, Pitch trainer or Harmony Keyboard?

Pitch trainer ships an update every 4 days, and Harmony Keyboard monthly. Most recently, Pitch trainer was updated on October 14, 2026 and Harmony Keyboard on October 6, 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.*