# MIDI FX vs midiOS

The clearest difference is price: MIDI FX at Free against midiOS's $24.99. MIDI FX also leads on device support (4 vs 1) and iOS requirement (14.7 vs 26.0). midiOS's advantage is in-app purchases (none vs 1) and update cadence (every 3 days vs every 9 days). On ads there is nothing between them.

MIDI FX is free to download; midiOS costs $24.99 up front. MIDI FX sells 1 one-off in-app purchase. midiOS asks for nothing beyond the download.

MIDI FX ships an update every 9 days, midiOS every 3 days. The most recent releases landed on October 6, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | MIDI FX | midiOS |
| --- | --- | --- |
| Price | **Free** | $24.99 |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/midi-fx/id1641511918/reviews)** | — |
| Number of ratings | **4** | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 9 days | **Every 3 days** |
| Monetization | Free | — |
| Size | 263 MB | 341 MB |
| Requires iOS | **14.7** | 26.0 |
| Devices | **iPhone, iPad, iPod, Mac** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Jorge Arroyo](https://appshunter.io/developer/548989572) | [jason merrill](https://appshunter.io/developer/1829076241) |

## What reviewers say

### MIDI FX

[App page](https://appshunter.io/ios/app/midi-fx/id1641511918)

This app allows you to control and process MIDI signals for music creation. It offers features like harmonization, transposition, and sequencing, enabling you to control external or virtual synthesizers and create complex musical arrangements.

**Highlights:** MIDI signal processing, Harmonize and Transpose, Sequencer for synths, Delay and Looper, Filter notes by velocity, Internal instruments

**Features:** Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock app | $9.99 | one-time |


### midiOS

[App page](https://appshunter.io/ios/app/midios/id6755208218)

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

**In-app purchases:** none


## Frequently asked questions

### Is MIDI FX free?

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

### Is midiOS free?

midiOS costs $24.99, with no in-app purchases.

### Do MIDI FX or midiOS have ads?

Neither MIDI FX nor midiOS shows ads.

### Which is updated more often, MIDI FX or midiOS?

MIDI FX ships an update every 9 days, and midiOS every 3 days. Most recently, MIDI FX was updated on October 6, 2026 and midiOS on October 9, 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.*