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MidiStep

MidiStep

Aleatoric Step Sequencer

26 ratings
16 reviews
🎵 Music
$14.99

Details

Released
October 12, 2024
Updated
December 2, 2025

Features

Developer

4Pockets.com
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🔄6+ apps
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About

Create complex rhythms and generative music with a powerful step sequencer. Control randomization for notes, chords, velocity, and more to generate unique, ever-changing musical patterns. Automate synth parameters with independent modulation lanes.

✓User-controlled randomization for musical parameters
✓Polyphonic chord playback per step
✓Variable step sequence lengths
✓Multiple linked patterns
✓8 independent modulation lanes
✓Real-time modification of randomization
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What's New in MidiStep

1.13

December 2, 2025

v1.13 B191 Fix for UI issue on some devices using iOS26.1.

User reviews

Most RecentHighest RatedLowest Rated

Where is the Auv3 plugin?

Where can I download the audio unit component so I can use this with my DAW? It is useless without it and I can’t find it anywhere
CCharlesEdward729

A very good sequencer that’s easy to learn

It has pretty much every feature I would want from a hardware sequencer. The one feature that would be a huge addition would be very basic direction options, or am I not seeing them? I see the random step button, but no backwards or back and forth direction options. Other than that maybe adding sixteen more steps, but I realize with every sequencer you simply have to accept its limitations and embrace its strengths.
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CKConrad Keely

Thanks for the app

As many have already mentioned MidiStep and Helium are a powerful combination.
AIAleni Innet

The app is crashing

Please check the app to work properly under iOS 15.8.4 and IPhone 7 Plus, in standalone mode it’s crashing after a while and the interface is empty and won’t load. In AUM it loads though. And I wasn’t able to find where to leave a feedback.
AIAleni Innet

The Joy of MidiStep

MidiStep is amazing. Combined with Helium it is phenomenal. Not to say it was impossible before, but now I finally feel I have a great workflow with a combination of tools that I can use to finish full tracks in AUM.
Oodd*
See 11 more reviews

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FAQ

What is MidiStep used for?

MidiStep is a polyphonic step sequencer designed for creating complex rhythms and generative music. It allows users to control randomization of various musical parameters to generate unique and evolving sequences.

How much does MidiStep cost?

MidiStep is a paid application priced at $8.99. There are no in-app purchases or advertisements.

What devices does MidiStep support?

MidiStep is available for iPhone, iPad, and iPod. It is rated for ages 4 and up.

How often is MidiStep updated?

The latest version of MidiStep is 1.13, last updated on December 2, 2025. This indicates a relatively active development cycle.

Can MidiStep create non-repeating sequences?

Yes, MidiStep can create an infinite number of non-repeating sequences by utilizing various randomization settings, cycle lengths, step skips, and pattern jumps.

What kind of randomization does MidiStep offer?

MidiStep offers sophisticated randomization for note values, note lengths, velocity, gate, dividers, repeats, swing, pitch bend, and modulation. Users can control the degree and types of randomization for each parameter.

What are the user reviews like for MidiStep?

MidiStep has received excellent user feedback, holding a perfect 5.0-star rating from 22 ratings, suggesting high user satisfaction.

Can MidiStep automate synth parameters?

Yes, MidiStep features 8 additional modulation lanes with independent play speeds that can be used to automate parameters within your favorite synthesizers.