# MIDI MACHINE vs HarmoTuner

The clearest difference is in-app purchases: HarmoTuner at none against MIDI MACHINE's 1. On price, update cadence, ads and device support there is nothing between them.

Both are free to download. MIDI MACHINE sells 1 one-off in-app purchase. HarmoTuner asks for nothing beyond the download.

MIDI MACHINE ships an update weekly, HarmoTuner every 2 weeks. The most recent releases landed on September 19, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | MIDI MACHINE | HarmoTuner |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 weeks |
| Size | 52 MB | 1 MB |
| Requires iOS | 18.6 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Niklas Koellner](https://appshunter.io/developer/1885054421) | [Shunsuke Hosomi](https://appshunter.io/developer/6780727274) |

## What reviewers say

### MIDI MACHINE

[App page](https://appshunter.io/ios/app/midi-machine/id6760569464)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| MIDI MACHINE Pro | $4.99 | one-time |


### HarmoTuner

[App page](https://appshunter.io/ios/app/harmotuner/id6780727272)

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

**In-app purchases:** none


## Frequently asked questions

### Is MIDI MACHINE free?

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

### Is HarmoTuner free?

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

### Do MIDI MACHINE or HarmoTuner have ads?

Neither MIDI MACHINE nor HarmoTuner shows ads.

### Which is updated more often, MIDI MACHINE or HarmoTuner?

MIDI MACHINE ships an update weekly, and HarmoTuner every 2 weeks. Most recently, MIDI MACHINE was updated on September 19, 2026 and HarmoTuner on September 28, 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.*