# MIDI FX

> Mobile MIDI workstation for signal processing, sequencing, and synth control. (iPhone/iPad app by Jorge Arroyo.)

- Source: https://appshunter.io/ios/app/midi-fx/id1641511918 (this page in markdown: same URL + `.md`)
- Developer: [Jorge Arroyo](https://appshunter.io/developer/548989572)
- Category: Music
- Price: Free with in-app purchases
- Rating: 5.00/5 from 4 App Store ratings
- Age rating: 4+
- Requires: iOS 14.7 · 263 MB
- Languages: American English
- Released: 2022-09-19
- Data updated: 2026-06-04
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/midi-fx/id1641511918/reviews.md

## What is MIDI FX?

Buy once and get the iOS and Mac apps (with Family Sharing)

Control your MIDI signals and process them in any combination of ways: Harmonize, Transpose, Arpeggiate, etc... Or use the Sequencer to play any external or virtual synth. Use a MIDI interface to unlock the power of the app to control multiple synths with one keyboard, play one note and generate chords, basslines, etc... Use the delay/looper or filter notes based on velocity or other parameters to send to different synths/effects.

A MIDI workstation in your pocket (or your iPad/Mac)

You can also use some internal instruments (drums sampler, piano or synth) if you are away from your MIDI gear, and sequence whole songs inside the app, or use other synth apps as input/output for MIDI FX. Your imagination is the limit!

## Key features

- MIDI signal processing
- Harmonize and Transpose
- Sequencer for synths
- Delay and Looper
- Filter notes by velocity
- Internal instruments

## Pricing and in-app purchases

Base price: Free.

**One-time purchases**

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



## Frequently asked questions about MIDI FX

### What devices does MIDI FX support?

MIDI FX is available on Mac, iPhone, iPad, and iPod. The purchase includes both iOS and Mac applications, with support for Family Sharing.

### How often is MIDI FX updated?

MIDI FX was last updated on October 21, 2025, with version 1.4.7. This indicates a recent update, suggesting ongoing development and support.

### What is the age rating for MIDI FX?

MIDI FX has an age rating of 4+, making it suitable for a wide range of users.

### Does MIDI FX have ads?

No, MIDI FX does not contain advertisements. Users can enjoy an ad-free experience while using the application.

### What are the primary uses of MIDI FX?

MIDI FX is used for controlling and processing MIDI signals, including harmonization, transposition, arpeggiation, and sequencing external or virtual synthesizers.

### Can MIDI FX be used without external MIDI gear?

Yes, MIDI FX includes internal instruments like a drum sampler, piano, and synth, allowing you to create music even when away from your MIDI equipment.

### What is the user sentiment for MIDI FX based on ratings?

MIDI FX has a perfect rating of 5.0 stars from 4 ratings, indicating a very positive reception from its current users.

### How does MIDI FX compare to other MIDI sequencing apps?

MIDI FX offers a comprehensive suite of MIDI processing and sequencing tools in a mobile-first package, including unique features like note filtering by velocity and integrated delay/looper effects.

## Version history (last 5 releases)

### 1.4.7 — 2025-10-21

Compiled with iOS26 SDK for better compatibility

### 1.4.6 — 2024-01-24

- NEW: Buttons to add a module between two connected modules: Long press on a connected module or move it and "+" buttons will appear on the link cables to add the new module and automatically insert it in the chain (as long as it has the correct inputs and outputs)
- Revised concurrency for better performance.

### 1.4.5 — 2024-01-06

- Added a "Pure Delay" module which you can use to delay or repeat a command a number of times by a set time or number of beats. You can configure it to either let the original command through or just the delayed "copies"
- Added the possibility to set negative intervals on the Hexagonal Keyboard. You can now set it up so notes go down when you go up the rows or columns.
- Fixed a bug on the settings: You can now set numbers on the text fields and they will get updated correctly

### 1.4.0 — 2023-12-07

- NEW HEXAGONAL KEYBOARD
- New module menu button to "hide" a module and get it out of the way if you're not currently tweaking it. Long press on the module and choose the last button to hide/show the module.
- Fixed a few small bugs

### 1.3.1 — 2023-01-14

- Changed how the modules receive MIDI Clock for a 3x boost in performance
- Added the option to duplicate the currently selected module (just click on a module and it will show in the Add Module Screen)
- Fixed a small problem where you couldn't drag the Sequencer module from the area of the Select and Copy buttons when they weren't visible
- Added a new project to the Examples to show the Trigger Input on the Sequencer
- Fixed some memory problems

## Apps similar to MIDI FX

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [Frenzy MIDI Sequencer](https://appshunter.io/ios/app/frenzy-midi-sequencer/id6478104544) | 4.7 (9) | Free | Music |
| [BeatCutter](https://appshunter.io/ios/app/beatcutter/id1536114453) | 4.6 (28) | $15.99 | Music |
| [PolyIvoks Filter](https://appshunter.io/ios/app/polyivoks-filter/id1507649629) | 4.6 (19) | Free | Music |
| [Loopmix](https://appshunter.io/ios/app/loopmix/id1640487139) | 4.5 (27) | $17.99 | Music |
| [rrarrow](https://appshunter.io/ios/app/rrarrow/id814966319) | 4.8 (18) | $3.99 | Music |
| [Branches - Semi-modular synth](https://appshunter.io/ios/app/branches-semi-modular-synth/id1520212093) | 3.9 (12) | $5.99 | Music |

## More apps by Jorge Arroyo

- [Vector Star Brawl](https://appshunter.io/ios/app/vector-star-brawl/id548989569)
- [piecepack](https://appshunter.io/ios/app/piecepack/id581537337)
- [Home Photo Widget](https://appshunter.io/ios/app/home-photo-widget/id1532412624)
- [MIDI FX PRO](https://appshunter.io/ios/app/midi-fx-pro/id6444039855)

All apps by Jorge Arroyo: https://appshunter.io/developer/548989572

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-04.*