# soundtronics vs Harmonauta

The clearest difference is in-app purchases: Harmonauta at none against soundtronics's 1. Harmonauta also leads on ads (none vs shown) and update cadence (every 4 days vs every 2 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. soundtronics sells 1 one-off in-app purchase. Harmonauta asks for nothing beyond the download.

soundtronics ships an update every 2 months, Harmonauta every 4 days. The most recent releases landed on November 5, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | soundtronics | Harmonauta |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Every 4 days** |
| Size | 9 MB | 3 MB |
| Requires iOS | 17.6 | **17.0** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Masayuki Akamatsu](https://appshunter.io/developer/284722836) | [Evandro Guedes Machado](https://appshunter.io/developer/1882816684) |

## What reviewers say

### soundtronics

[App page](https://appshunter.io/ios/app/soundtronics/id6756941705)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $4.99 | one-time |


### Harmonauta

[App page](https://appshunter.io/ios/app/harmonauta-music-maker/id6809853292)

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

**In-app purchases:** none


## Frequently asked questions

### Is soundtronics free?

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

### Is Harmonauta free?

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

### Do soundtronics or Harmonauta have ads?

soundtronics shows ads; Harmonauta does not.

### Which is updated more often, soundtronics or Harmonauta?

soundtronics ships an update every 2 months, and Harmonauta every 4 days. Most recently, soundtronics was updated on November 5, 2026 and Harmonauta on October 31, 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.*