Comparison

Midi Amuser vs Compositor NTP

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

Compositor NTP

Features
Read full description

Compositor NTP is a single solution for metronome and Ethernet education. It is a real-time device, which uses physical modeling as a source for NTP synchronous signal. Using the iOS version you can transform your iPhone into rhythm modeling station. You can adjust parameters visible on the screen using menus, dials and virtual keyboard. All of the dials smoothly interpolate for click-free performance. Compositor NTP is your entry point into the world of Ethernet communications. It dynamically updates the sound engine in accordance to IP address settings for three loopback channels. - Compositor NTP is an instrument that uses upper-level C++ programming, which makes it available as a pure 64-bit DSP application - First ever musical metronome with odometry - Convenient tempo and tone control - Natal chart of Constellations and month year cycle - Simulation of Solar System objects - Audio loopback and packet simulation - Telescope style control over reverberation channel

Screenshots

Midi Amuser4 screens
Compositor NTP1 screens

Verdict

The call

The clearest difference is price: Midi Amuser at Free against Compositor NTP's $2.99. Midi Amuser also leads on update cadence (every 5 weeks vs every 2 months). On ads, in-app purchases, device support and iOS requirement 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

Midi Amuser is free to download; Compositor NTP costs $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Midi Amuser ships an update every 5 weeks, Compositor NTP every 2 months. The most recent releases landed on August 4, 2026 and June 4, 2026 respectively.

Scorecard2 real differences · 7 level
Midi Amuser versus Compositor NTP: the parameters behind the verdict, then further details
ParameterMidi AmuserCompositor NTP
PriceFree — better$2.99
Rating4.8 (5 ratings) — better—
Number of ratings5 — better—
Update frequencyEvery 5 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPodiPhone, iPad
Requires iOS15.0 — better16.2
Further details — not scored
Size4 MB4 MB
Age rating4+4+
DeveloperTilmann SchuepferRuslan Yusipov

In-app purchases

None

Midi Amuser

No in-app purchases

None

Compositor NTP

No in-app purchases

Questions

Is Midi Amuser free?
Midi Amuser is free to download, with no in-app purchases.
Is Compositor NTP free?
Compositor NTP costs $2.99, with no in-app purchases.
Do Midi Amuser or Compositor NTP have ads?
Neither Midi Amuser nor Compositor NTP shows ads.
Which is updated more often, Midi Amuser or Compositor NTP?
Midi Amuser ships an update every 5 weeks, and Compositor NTP every 2 months. Most recently, Midi Amuser was updated on August 4, 2026 and Compositor NTP on June 4, 2026.

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