A powerful MIDI sequencer, editor, and controller for digital music production on iPhone and iPad. It offers a desktop-class editing experience, robust import/export, and advanced features like MPE support and Ableton Link.






9+ similar apps compared and reviewed
StepPolyArp is great, but it's not the only option. Explore 9+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.






A powerful MIDI sequencer, editor, and controller for digital music production on iPhone and iPad. It offers a desktop-class editing experience, robust import/export, and advanced features like MPE support and Ableton Link.






This app is a flexible MIDI drum sequencer for iOS, offering up to 16 tracks with advanced modulation and sequencing. It can be used standalone or as an AUv3 plugin in DAWs, and is optimized for drums but also suitable for melodies. It requires iOS 12 or higher.






This app is a powerful 16-track MIDI step sequencer designed for iOS devices. It allows users to create complex musical patterns with high resolution, elastic timing, and per-step control. It integrates with external synths and samplers, offering extensive features for melody, harmony, and drum sequencing.


This app offers a powerful mobile music production experience, blending groovebox functionality with DAW features. Create full tracks, perform live sets with a clip launch grid, and sketch musical ideas using built-in instruments and extensive effects.


This audio plugin allows musicians to sculpt immersive soundscapes by controlling stereo placement and effects across four distinct frequency bands. Create dynamic, atmospheric audio with automated movement and morphing between saved settings.


Design and build your own custom MIDI plugins for music production. This tool offers a simple yet powerful scripting language and pre-built components to create filters, sequencers, and generative music tools. It integrates with AUv3 MIDI hosts for seamless workflow.


This audio effect plugin enhances sounds by simultaneously compressing loud elements and amplifying quiet ones. It's designed to add massive proportions, aggressive edges, and bring out subtle details in audio, making it ideal for producers looking to add hype and excitement to their tracks.


Create unique arpeggiation patterns with unlimited steps and customizable parameters like interval, velocity, and probability. Control note rates, swing, and randomize patterns in real-time for live performance or music production. Requires MIDI input/output to function.


This app is an analog drumsynth that creates sounds using authentic synthesis algorithms, not samples. It features a creative Euclidean sequencer for pattern programming and integrates seamlessly with AUv3 hosts like Garageband. It offers customizable sound models and MIDI control for flexible music production.