# Harmonics Practice vs Calcophony

The clearest difference is in-app purchases: Harmonics Practice at none against Calcophony's 1. Harmonics Practice also leads on iOS requirement (14.0 vs 16.4). On price, ads and device support there is nothing between them.

Both are free to download. Calcophony sells 1 one-off in-app purchase. Harmonics Practice asks for nothing beyond the download.

## The numbers

| Metric | Harmonics Practice | Calcophony |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 6 weeks |
| Size | 31 MB | 61 MB |
| Requires iOS | **14.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tarmo Johannes](https://appshunter.io/developer/1131081454) | [Valtone Oy](https://appshunter.io/developer/6795196647) |

## What reviewers say

### Harmonics Practice

[App page](https://appshunter.io/ios/app/harmonics-practice/id6748588377)

**Features:** macOS Compatibility

**In-app purchases:** none


### Calcophony

[App page](https://appshunter.io/ios/app/calcophony/id6759179626)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Calcophony Pro | $4.99 | one-time |


## Frequently asked questions

### Is Harmonics Practice free?

Harmonics Practice is free to download, with no in-app purchases.

### Is Calcophony free?

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

### Do Harmonics Practice or Calcophony have ads?

Neither Harmonics Practice nor Calcophony shows ads.

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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.*