Quickly create complex chord progressions with a powerful music theory engine. Explore scales, borrow chords, and customize chord details in real-time. Supports multiple patterns and MIDI control for advanced music production.






250+ iOS apps curated and reviewed
The best chordbud 2 auv3 midi sequencer apps on iPhone average 4.6★ across 250+ titles — we've ranked them by what real users actually keep on their phones. Updated August 2026.
| # | App | Price | Rating | Ads | In-App Purchases | Updated |
|---|---|---|---|---|---|---|
| 1 | $5.99 | 3.1★ (24) | No | No | Aug 2026 | |
| 2 | Free | 4.8★ (75) | No | Yes | Jul 2026 | |
| 3 | Free | 4.7★ (15) | No | Yes | Jul 2026 | |
| 4 | $8.99 | 4.8★ (39) | No | No | Jul 2026 | |
| 5 | Free | 5.0★ (9) | No | No | Aug 2026 | |
| 6 | Free | — | No | No | Aug 2026 | |
| 7 | $14.99 | 4.9★ (29) | No | No | Jul 2026 | |
| 8 | $7.99 | 4.7★ (586) | No | No | Aug 2026 |






Quickly create complex chord progressions with a powerful music theory engine. Explore scales, borrow chords, and customize chord details in real-time. Supports multiple patterns and MIDI control for advanced music production.




Create custom synthesizers, audio effects, and MIDI processors with a modular music-making tool. Arrange modules on lanes to process signals and route them internally or with your host DAW. Explore a vast library of modules to craft unique sounds.






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.


This app offers a unique approach to MIDI sequencing with interactive and semi-generative features. Connect steps with conditional 'wormholes' for structured variation and create melodic variations in real-time without disrupting the groove. Its flexible grid supports various musical applications, from simple melodies to complex generative patterns.


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.




Generate complex musical sequences automatically using Euclidean rhythms. This AUv3 plugin allows you to define multiple rhythm parts, create patterns, and switch between them seamlessly within your favorite DAW.


This app is a musical instrument and songwriting tool that simplifies music theory. It helps users create chord progressions, discover new harmonies, and find melodies that match chords or scales. It integrates with other music apps and hardware for seamless production.


This app is a powerful AUv3 MIDI sequencer that allows for generative sequencing with randomized notes, velocity, octave, and gate length. It features parameter-locking for individual step customization and supports over 40 scales, with Ableton Link synchronization in its standalone version.


This app helps musicians create chord progressions and explore music theory. It offers tools to discover chords, find melodies, and learn relationships between chords and scales, all through an intuitive interface with an on-screen keyboard.


This app is a versatile MIDI sequencer that allows for unlimited steps and detailed control over each step's parameters. It integrates with other music apps and supports various sequencing modes for creative performances.


This app generates MIDI note data to simulate guitar strumming and picking. It includes a soundfont player, definable chord pads, and a pattern editor for creating custom strumming and picking sequences. You can also chain patterns into songs and apply various audio effects.


This app is a 16-step AUv3 MIDI sequencer featuring a 4x4 grid for creating complex musical patterns. It offers extensive control over note, gate, velocity, and probability, with a music theory engine and randomization tools for unique sound design.


This app transforms incoming MIDI messages into custom rhythmic patterns using an intuitive editor. It supports various audio routing methods and offers features like snapshots, record mode, and undo/redo.


This app is a powerful MIDI sequencer designed for music production. It allows users to create and arrange complex musical pieces with multiple tracks, extensive clip libraries, and advanced looping features. Easily organize and import MIDI data to build songs efficiently.


This app generates musical notes based on user-defined probabilities for various musical parameters. It includes a looper for capturing and repeating sequences, with detailed editing capabilities for individual notes within the loop. It's a powerful tool for creating complex and evolving musical patterns.


This is a pattern-based MIDI sequencer plugin for AUv3 compatible hosts. It can drive external MIDI instruments or its internal sample-based audio engine. Create looped patterns, chain them into songs, and experiment with real-time performance modes.


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.


Generate unique basslines and melodies automatically using an editable algorithm. Customize parameters like complexity, density, and spread to craft your perfect sound. Export MIDI files for use in your DAW.


This app generates MIDI notes through a unique physics-based system. Balls collide with customizable keyboards, triggering MIDI events. It offers extensive control over note scales, velocity, and MIDI channels for diverse musical creations.