Midi Amuser vs Compositor NTP
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
Read full descriptionHide 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
Compositor NTP
Read full descriptionHide 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
Verdict
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
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.
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.
| Parameter | Midi Amuser | Compositor NTP |
|---|---|---|
| Price | Free — better | $2.99 |
| Rating | 4.8 (5 ratings) — better | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 5 weeks — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.2 |
| Further details — not scored | ||
| Size | 4 MB | 4 MB |
| Age rating | 4+ | 4+ |
| Developer | Tilmann Schuepfer | Ruslan Yusipov |
In-app purchases
Midi Amuser
No in-app purchases
Compositor NTP
No in-app purchases








