Best Composer Midi Apps

Midi Amuser

Midi Looper and Arranger

Free

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.

Sequincer: MIDI Sequencer

Music Composition Studio

Free

Compose music on the go with this grid-based MIDI sequencer. Easily add notes, adjust durations, and build complex arrangements with multiple tracks and instruments. Supports MIDI and MusicXML import, and works as a standalone app or AUv3 plugin.

SAND: Audio MIDI Sequencer

Record & Make Music, Host AUv3

Free

This app is a grid-based music sequencer that allows users to create compositions using AUv3 plugins and external MIDI devices. It offers extensive tools for arranging clips, editing notes, automating parameters, and routing MIDI.

MIDI Pro

Backings and Composition Ideas

Free

Generate practice tracks and composition ideas by mixing percussion and melody. Tailor sequences with custom rhythms, keys, scales, and chord progressions. Save MIDI files for further editing in your DAW.

MIDI Wrench

MIDI Monitor & MIDI Controller

Free

This app acts as a versatile tool for managing MIDI devices on iOS. It allows you to monitor incoming MIDI messages in real-time and send your own MIDI commands using virtual controls. It's useful for troubleshooting MIDI setups and understanding device communication.

MIDI Sniffer

Capture and Share MIDI Logs

Free

Capture and share MIDI messages from external instruments. View logs in text or hex with precise timestamps. Export as MIDI files or share via text/email. Supports Bluetooth LE connections and message filtering.

MIDI Motif Maker

Motif Generator & MIDI Tool

$5.99

Generate unique melodies with a single tap using a constraint solver and Markov engine. Shape, remix, and export your musical ideas as MIDI files. This app works offline and offers built-in music theory references.

KeyPad MIDI Controller

SFZ, SF2 Player · Piano & Pads

Free

Transform your device into a professional MIDI controller with touch-optimized piano keys, drum pads, and performance controls. It supports SFZ, SF2, WAV, and M4A samples, and can control iOS apps, hardware synths, and Mac software wirelessly or wired.

Simple MIDI

Open Source MIDI Player

Free

This open-source application allows users to play MIDI files on their iOS devices. It's built using Swift Playgrounds and AudioKit, offering a learning opportunity for aspiring developers.

MIDIWeb Browser

Play with WebMIDI in style.

Free

This music app allows users to interact with WebMIDI websites, enabling them to learn, create, and play music. It serves as a companion for exploring MIDI functionalities online.

NS MIDI Player

Simple MIDI player

Free

This application allows users to play MIDI files on their Apple devices. It supports various MIDI formats, custom sound fonts, and synchronized lyrics. Advanced features like audio export and MIDI output connection are available via a one-time purchase.

MIDIKeys - MIDI Controller

Send MIDI Data to Apps/Synths

Free

This app acts as a virtual MIDI keyboard controller, allowing you to send MIDI messages to synthesizer apps and hardware. It offers customizable velocity, octave transposition, and tilt controls for expression.