# GlitchStep — 16 Step MIDI Sequencer AUv3

> 16-step monophonic MIDI sequencer and AUv3 MIDI processor extension for music creation. (iPhone/iPad app by Alex Matheu.)

- Source: https://appshunter.io/ios/app/glitchstep/id6708239273 (this page in markdown: same URL + `.md`)
- Developer: [Alex Matheu](https://appshunter.io/developer/407790501)
- Category: Music, Productivity
- Price: $9.99
- Rating: 4.90/5 from 19 App Store ratings · 9 written reviews indexed
- Age rating: 4+
- Requires: iOS 17.2 · 6 MB
- Languages: American English
- Released: 2024-10-28
- Data updated: 2026-08-30
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/glitchstep/id6708239273/reviews.md

## What is GlitchStep?

Unleash Your Creativity with GlitchStep

GlitchStep is a cutting-edge monophonic 16-step, performance-oriented sequencer and AUv3 MIDI processor extension. Dive into a world of musical possibilities as you play with your sequence and perform dynamic, captivating variations.

Next-Level Sequence Manipulation: Inspired by GlitchCore, GlitchStep employs a slice grid for real-time sequence rearrangement. Both patterns and slices can be compiled into playlists, allowing you to build and modify songs on-the-fly for live performance or studio sessions.

Effortless Integration: Load GlitchStep as an AUv3 MIDI Processor/MIDI FX in your favorite AUv3 hosts like AUM, Logic, Loopy Pro, Drambo, and more. Note: Standalone use is not supported.

Features to Elevate Your Music:

- 16 Steps
- 8 Patterns
- Unlimited Pattern Playlist Entries
- Slice Grid with Drawing Mode
- 8 Slice Patterns
- Unlimited Slice Pattern Playlist Entries
- Glitch Your Sequence with XY Pad and Sliders
- Aggressive Glitch Capabilities
- Extensive Scale Options
- Customizable Start and End Sequence Positions
- Control Sequence Direction
- Global Sequence Rate Adjustments
- Individual Pattern Rates
- Pattern Note Slides
- Swing
- Randomize, Shift, Shuffle, Copy/Paste, and Initialize Patterns
- Randomization Thresholds
- Selective Randomization for Notes, Gates, Velocity, and Probability
- Randomize, Shift, Copy/Paste, and Initialize Slices
- Scale Key Adjustment
- Minimum Octave and Octave Range Settings
- 16 Themes

Transform your music production with GlitchStep. Whether you're looking to add subtle variations or go all-in on aggressive glitches, this app has you covered.

## Key features

- 16-step monophonic sequencer
- AUv3 MIDI processor extension
- Real-time sequence rearrangement
- Pattern and slice playlists
- Glitch effects with XY pad
- Extensive scale options
- Customizable sequence controls

## Recent user reviews (9 of 9)

All indexed reviews: https://appshunter.io/ios/app/glitchstep/id6708239273/reviews.md

### 4/5 — Question

*2025-11-17*

Why does it appear as an audio device? Its not. Its clutters. 
Otherwise great plugin :)

### 5/5 — Fast fun inventive sequencer

*2025-08-03*

Loving it. Great sequencer for all kinds of uses.

### 5/5 — The only professional Glitch Sequencer on IOS worthy of 5 Stars

*2024-12-23*

I don't even know where to begin.  

1.  The app is gorgeous and has multiple skins.
2. The app is very tiny and plays well with multiple instances
3. All essential timing and an array of randomization options. 
4. It can be used to make beautiful, traditional sequences- it doesn't have to stutter, flam, ratchet,etc-  but that's really where Alex (dev) shines. He really understands the glitch matrices and oh man, I almost forgot.... the flow of the app, you can tell that this is a musicians application, but also easy enough to get anyone into it.

This is an amazing contribution to the iOS music community.   It's right up there with Loopy Pro, pure acid, fac drumkit, harmony bloom- all iconic offerings.  glitch Step is amongst great company

### 1/5 — No sound

*2024-11-23*

No sound with IOS 17….what’s going on?

**Developer response:** That is correct, this app does not make any sound. It is a MIDI Processor extension, and outputs MIDI data, not audio.

### 5/5 — Working now

*2024-11-12*

Very interesting sequencer.

### 5/5 — This will get plenty of use!

*2024-11-03*

Great midi sequencer for adding some randomization and instability to break up monotony.  The controls weren’t 100% intuitive at first but the user manual is linked in the app and is well laid out.  One look at the user manual for a couple of mins to pick up a few pointers and tricks and the app becomes second nature and very easy to navigate in no time.  Great execution, easy to use, great sounds and a lot of fun.  No brainer purchase.

### 5/5 — Even though it’s been years, but

*2024-11-02*

BUT ITS ABSOLUTELY WORTH THIS!!

### 5/5 — Fun & AMAZING!🥳🎶

*2024-11-01*

I have a gazillion music making apps at this point, and this just steps up to #1 for instant fun! It’s really easy to learn and navigate and it allows you to jam and enjoy making music! though I appreciate the depth of may apps, sometimes it gets that I’m spending more time trying to learn the apps than actually making music. With this I was able to jump right in. AND, it’s also deep! Easy to make patterns and then make changes within them - I really love this and am grateful to the developer, thank you!!

### 5/5 — Love this dev’s work..

*2024-10-29*

And Glitchstep is no exception. It is great. Very easy to use but powerful, with musical and interesting results

## Frequently asked questions about GlitchStep

### What is GlitchStep?

GlitchStep is a monophonic 16-step MIDI sequencer and AUv3 MIDI processor extension designed for music creation and live performance. It offers real-time sequence manipulation and integration with other AUv3 hosts.

### How much does GlitchStep cost?

GlitchStep is a paid application, available for $9.99. There are no in-app purchases or subscriptions associated with its functionality.

### Does GlitchStep have ads?

No, GlitchStep does not contain advertisements. As a paid application, it offers an uninterrupted user experience.

### What devices is GlitchStep compatible with?

GlitchStep is supported on Mac, iPhone, and iPad devices. It requires an AUv3 compatible host application to function.

### How often is GlitchStep updated?

GlitchStep was last updated on November 19, 2024, with version 1.1.2. This indicates a recent update, suggesting ongoing development and support from the developer.

### What is the age rating for GlitchStep?

GlitchStep has an age rating of 4+, making it suitable for a wide range of users interested in music production.

### Can GlitchStep be used as a standalone application?

No, GlitchStep is not designed for standalone use. It must be loaded as an AUv3 MIDI Processor/MIDI FX within compatible AUv3 hosts such as AUM, Logic, Loopy Pro, or Drambo.

### What makes GlitchStep unique compared to other sequencers?

GlitchStep's unique features include its 'GlitchCore' inspired slice grid for real-time sequence rearrangement, aggressive glitch capabilities via an XY pad and sliders, and extensive randomization options for notes, gates, velocity, and probability.

## Version history (last 5 releases)

### 1.1.2 — 2024-11-19

Bug fixes and improvements
This version fixes an issue where loading a preset could potentially skip the first step when first played.
This version fixes an issue where the notes could all be set to default when loading a session or preset.

### 1.1.1 — 2024-11-14

Bugfixes and Improvements
Fixes an issue with Logic Pro preroll recording.
Fixes an issue with PNG sequence direction that could travel in reverse when first turned on.
Fixes contrast issues with .light system mode, in this version themes should appear the same in .dark or .light
This version changes how notes are scaled when changing the octave range, will preserve the sequence as much as possible.
Themes Lt Default and Lt Reverse were renamed to Light and Lighter and are proper light themes.
This version fixes a screen resolution issue with iPhone SE
Optimizes scale changes via AU Parameters

### 1.1.0 — 2024-11-11

What's New in GlitchStep 1.1.0

Get ready for a game-changing update with GlitchStep 1.1.0! We’ve added a host of exciting new features to enhance your music creation experience. Check out what’s new:

A New Way to Select Notes

Single-tap a knob when Notes mode is selected to display a note selection grid. Easily choose the note you want, with root and key notes bolded for clarity. Cancel selection with a simple tap on any knob.

Step Lock Mode

Lock steps to prevent Randomization, Shuffle, Shift, and Transpose. Locked steps show a lock icon, and the knob text changes to the theme’s accent color. Copy and paste patterns with lock states intact, and clear locks by initializing the pattern.

Ping Pong Sequence Direction

Introducing Ping Pong mode! Your sequences now play forward and then reverse, adding dynamic flow to your music.

Long Press Actions on Edit Panel Buttons

Discover new functionalities with long press actions on buttons marked with a horizontal line.

Mutate Pattern

Long press the randomize button to activate Mutate Pattern. This feature randomizes your current pattern at the start of each playback, keeping your music fresh and unpredictable.

Transpose Up/Down Modes

Long press Shift buttons to switch between shifting and transposing. Transpose Up/Down transposes notes within the current scale or by octaves, perfect for dynamic musical variations.

Randomization Range for Notes

Notes now adhere to the Randomization Range. Toggle the note icon from 3 notes to 1 note with a long press, ensuring notes fall within the desired range.

Mutate Slice Pattern

Randomize your slice patterns with an algorithm for smooth runs. Long press to activate Mutate Slice Pattern, adding spontaneous variations each time your slice pattern plays.

Update to GlitchStep 1.1.0 now and unlock these powerful new features to take your music to the next level!

### 1.0.4 — 2024-11-03

This version fixes a an issue with a few minor scales ordering in the scale selector.
This version also adheres to scale notes when a scale is selected and a steps note is changed with the Step Note AU Parameters.

### 1.0.3 — 2024-11-01

This version adds an (Init ID) version of the MIDI Processor extension and the Audio Unit
A change was made to pass validation of the manufacturer ID from mind to MSND because it needed uppercase characters.
This change made loading older sessions with the original ID error when loading.
If you are experiencing this issue, this should will load the older sessions using the (Init ID) version

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## More apps by Alex Matheu

- [GlitchBreaks](https://appshunter.io/ios/app/glitchbreaks/id520451538)
- [Sliver](https://appshunter.io/ios/app/sliver/id789010140)
- [GlitchCore](https://appshunter.io/ios/app/glitchcore/id1499237784)

All apps by Alex Matheu: https://appshunter.io/developer/407790501

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-30.*