# mfxMonitor — MIDI Effect Plugin

> Free MIDI event monitor for AUv3 or CoreMIDI hosts, displaying text and hex data. (iPhone/iPad app by Audeonic Apps.)

- Source: https://appshunter.io/ios/app/mfxmonitor/id1451193551 (this page in markdown: same URL + `.md`)
- Developer: [Audeonic Apps](https://appshunter.io/developer/351607509)
- Category: Music, Utilities
- Price: Free
- Rating: 4.00/5 from 4 App Store ratings · 2 written reviews indexed
- Age rating: 4+
- Requires: iOS 9.0 · 2 MB
- Languages: American English
- Released: 2019-02-05
- Data updated: 2026-08-21
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/mfxmonitor/id1451193551/reviews.md

## What is mfxMonitor?

* MIDI MONITOR *
(AUv3 or CoreMIDI Effect)

Does the World need another MIDI Monitor? We thought so, and it's free, so you have nothing to lose to add this handy little utility to your app collection.

Any MIDI events received by the plugin are displayed in a scrolling window in both textual form and also the lower level hex bytes with timestamps. Once you get sick of the events you can press the 'clear' button to wipe them out of your life forever.

* ABOUT mfxSeries *

mfxSeries is a set of compact but powerful plugins for CoreMIDI or AUv3 hosts. Covering a range of use cases from common everyday MIDI manipulation tasks to creatively ambitious effects. 

Each plugin in the mfxSeries can be controlled and automated from the host as all controls are exposed as AUv3 parameters. 

mfxSeries plugins are built using the MidiBus library - http://midib.us

## Key features

- MIDI event display
- Textual and hex format
- Timestamped events
- Clear event log
- AUv3 compatible
- CoreMIDI compatible

## Recent user reviews (2 of 2)

All indexed reviews: https://appshunter.io/ios/app/mfxmonitor/id1451193551/reviews.md

### 1/5 — Unreliable

*2019-11-01*

Does not always detect the same source. Sometimes does not work at all while other software sees the MIDI stream.

### 5/5 — MIDI Kings

*2019-04-16*

These developers really know what MIDI(pronounced middy, not meedee) is all about. You can mess with similar apps created by beginners or ones made by the kings. Not only are they so knowledgeable but also ready to help and admit their mistakes. What more is there? Well there is one thing better; perfection. So either go with these guys and their great apps or seek out perfection. I will go with these guys. You decide for yourself.
I also will suggest spending a lot of time learning MIDI, not only how to choose app midi settings, but how midi really works, the theory behind it, and get an app like midifire to help you learn to control midi to do exactly what you want it to do. I think midifire is the best app for that. There is also midiflow which I like a lot that in my opinion is a close second, very close.
Now the most important advice I can give:
  HAVE FUN, 
because if you are not having fun then there is a big problem.

## Frequently asked questions about mfxMonitor

### What is mfxMonitor?

mfxMonitor is a free utility that displays incoming MIDI events in both textual and hexadecimal formats with timestamps. It's designed for use with AUv3 or CoreMIDI hosts.

### Is mfxMonitor free to use?

Yes, mfxMonitor is completely free to download and use. The developer states there is nothing to lose by adding this handy utility to your app collection.

### What devices does mfxMonitor support?

mfxMonitor is supported on iPhone, iPad, and iPod. It is designed to work with iOS devices.

### How often is mfxMonitor updated?

The latest version of mfxMonitor is 1.4, last updated on October 4, 2019. It was initially released on February 5, 2019.

### What is the age rating for mfxMonitor?

mfxMonitor has an age rating of 4+. This indicates it is suitable for users aged 4 and above.

### Does mfxMonitor have ads?

No, mfxMonitor does not contain advertisements. It is a free application without any ad interruptions.

### Can I clear the MIDI events in mfxMonitor?

Yes, mfxMonitor includes a 'clear' button that allows you to wipe the displayed MIDI events from the scrolling window.

### What is the user rating for mfxMonitor?

mfxMonitor has a user rating of 4.0 stars based on 4 ratings. This suggests generally positive user feedback.

## Version history (last 4 releases)

### 1.4 — 2019-10-04

- support for zero latency hosting in MidiFire 2.0
- bug fixes

### 1.2 — 2019-04-16

- fix crash when events come in quickly

### 1.1 — 2019-02-15

fixed icon with 'monitor' flourish to differentiate from other mfx apps

### 1.0 — 2019-02-05

No release notes.

## Apps similar to mfxMonitor

| App | Rating | Price | Category |
| --- | --- | --- | --- |
| [JAX MIDI Control Pad](https://appshunter.io/ios/app/jax-midi-control-pad/id6482661296) | 5.0 (2) | $5.99 | Music |
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| [ShowMIDI](https://appshunter.io/ios/app/showmidi/id6472608850) | 4.8 (18) | Free | Music |
| [Midiflow Adapter (Audiobus)](https://appshunter.io/ios/app/midiflow-adapter-audiobus/id1225817367) | 4.2 (5) | $1.99 | Music |
| [Dexed Synth](https://appshunter.io/ios/app/dexed-synth/id1462551596) | 3.3 (40) | $3.99 | Music |
| [MelodyBud Generative Sequencer](https://appshunter.io/ios/app/melodybud-generative-sequencer/id1601357369) | 4.4 (12) | $6.99 | Music |

## More apps by Audeonic Apps

- [FreEWI](https://appshunter.io/ios/app/freewi/id485711674)
- [MidiBus](https://appshunter.io/ios/app/midibus/id648856167)
- [MidiFire](https://appshunter.io/ios/app/midifire/id906600872)
- [GigRig MIDI+](https://appshunter.io/ios/app/gigrig-midi-plus/id1090436811)
- [StreamByter](https://appshunter.io/ios/app/streambyter/id1398712641)
- [mfxConvert](https://appshunter.io/ios/app/mfxconvert/id1451192046)

All apps by Audeonic Apps: https://appshunter.io/developer/351607509

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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 2026-08-21.*