Midi Amuser vs MIDI FX
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Midi Amuser
This app allows you to connect, control, and record up to 10 MIDI instruments and controllers across 10 tracks. It manages routing, recalls instrument states, and enables live looping and complex song arrangements with a stable clock and zero latency.
- Connect up to 10 MIDI instruments
- Connect up to 10 MIDI controllers
- Zero latency
- Step sequencer
- Manage synth patches
- Record and arrange MIDI events on 10 tracks
- Arrange up to 16 song parts
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Midi Amuser lets you connect, control and record up to 10 instruments on 10 tracks with up to 10 input devices. It will take care of your routing, recall your instruments’ CC states across songs and arrangements. It lets you make live loops as well as create complex song arrangements. - make it the center of your MIDI setup - connect up to 10 MIDI instruments - connect up to 10 MIDI controllers - zero latency - stable clock - step sequencer - use a foot switch to record after the fact - manage all your synths’ patches - automatically save and recall Control Change states of your instruments - record, copy, quantise Midi events on up to 10 tracks - arrange up to 16 song parts - make templates for live performances - loop and arrange live - import and export songs
MIDI FX
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.
- MIDI signal processing
- Harmonize and Transpose
- Sequencer for synths
- Delay and Looper
- Filter notes by velocity
- Internal instruments
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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!
Screenshots
Verdict
The clearest difference is in-app purchases: Midi Amuser at none against MIDI FX's 1. MIDI FX's advantage is update cadence (every 9 days vs every 5 weeks) and device support (4 vs 2). On price, rating, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. MIDI FX sells 1 one-off in-app purchase. Midi Amuser asks for nothing beyond the download.
MIDI FX holds the better App Store score, 5.0 against 4.8. Both are backed by a comparable volume of ratings — 6 and 5 respectively.
Midi Amuser ships an update every 5 weeks, MIDI FX every 9 days. Both last shipped on November 3, 2026.
| Parameter | Midi Amuser | MIDI FX |
|---|---|---|
| Price | Free | Free |
| Rating | 4.8 (6 ratings) | 5.0 (5 ratings) — better |
| Number of ratings | 6 — better | 5 |
| Update frequency | Every 5 weeks | Every 9 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free | Free |
| Devices | iPhone, iPod | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 15.0 | 14.7 — better |
| Further details — not scored | ||
| Size | 4 MB | 263 MB |
| Age rating | 4+ | 4+ |
| Developer | Tilmann Schuepfer | Jorge Arroyo |
Customer experience
Midi Amuser
MIDI FX
In-app purchases
Midi Amuser
No in-app purchases
MIDI FX
- Unlock app$9.99
Questions
Is Midi Amuser free?
Is MIDI FX free?
Which has better reviews, Midi Amuser or MIDI FX?
Do Midi Amuser or MIDI FX have ads?
Which is updated more often, Midi Amuser or MIDI FX?
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