Comparison

Midi Amuser vs MIDI FX

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Read full description

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

About

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.

Highlights
  • MIDI signal processing
  • Harmonize and Transpose
  • Sequencer for synths
  • Delay and Looper
  • Filter notes by velocity
  • Internal instruments
Features
Read full description

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

Midi Amuser4 screens
MIDI FX2 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

Midi Amuser ships an update every 5 weeks, MIDI FX every 9 days. Both last shipped on November 3, 2026.

Scorecard3 real differences · 6 level
Midi Amuser versus MIDI FX: the parameters behind the verdict, then further details
ParameterMidi AmuserMIDI FX
PriceFreeFree
Rating4.8 (6 ratings)5.0 (5 ratings) — better
Number of ratings6 — better5
Update frequencyEvery 5 weeksEvery 9 days — better
AdsNoNo
In-app purchasesNo — betterYes
MonetizationFreeFree
DevicesiPhone, iPodiPhone, iPad, iPod, Mac — better
Requires iOS15.014.7 — better
Further details — not scored
Size4 MB263 MB
Age rating4+4+
DeveloperTilmann SchuepferJorge Arroyo

Customer experience

Midi Amuser

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

MIDI FX

All ratings4 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Midi Amuser

No in-app purchases

1 purchases

MIDI FX

One-time1
  • Unlock app$9.99

Questions

Is Midi Amuser free?
Midi Amuser is free to download, with no in-app purchases.
Is MIDI FX free?
MIDI FX is free to download, with in-app purchases available.
Which has better reviews, Midi Amuser or MIDI FX?
MIDI FX is rated higher. Midi Amuser averages 4.8 out of 5 from 6 ratings, while MIDI FX averages 5.0 from 5 ratings.
Do Midi Amuser or MIDI FX have ads?
Neither Midi Amuser nor MIDI FX shows ads.
Which is updated more often, Midi Amuser or MIDI FX?
Midi Amuser ships an update every 5 weeks, and MIDI FX every 9 days. Most recently, Midi Amuser was updated on November 3, 2026 and MIDI FX on November 3, 2026.

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