ChaosArp vs GlitchStep
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ChaosArp
This music app generates complex and dynamic MIDI patterns using advanced algorithms. It offers a unique rhythm event feature and variance control for extensive customization, allowing users to create evolving musical sequences.
- Arpeggiator and step sequencer modes
- Rhythm event feature with 13 algorithms
- Pitch and rhythm variance control
- Scale quantizer
- Randomizable velocity and duration
- 4 performance buttons
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Introducing ChaosArp, the next-level MIDI arpeggiator/step sequencer designed to transform your musical ideas into intricate, dynamic patterns with a unique twist. ChaosArp is not just any arpeggiator; it's a powerhouse tool that uses the same advanced algorithms as LoAdKer to modulate pitch, rhythm, velocity, and duration, creating evolving, complex but high musical patterns that breathe life into your music. Dive into the heart of your creativity with ChaosArp's innovative ‘rhythm event’ feature, which allows you to explore a variety of rhythmic modifications. From repeaters to stretchers and rests for extra space and emphasis—ChaosArp has it all. Each one of these rhythm events can be assigned to any of the 6 available slots, offering limitless possibilities. Fine-tune your sonic exploration with the innovative ‘variance’ control - which goes one step beyond the simple ‘probability’ control that most arpeggiators have. Adjusting this setting for either pitch or rhythm (or both) will vary the character of the generated sequences, from fairly minimalistic to completely chaotic, thus opening up a world of endless variations. Elevate your music production today with ChaosArp and unleash patterns that inspire! Features: - Two modes: arpeggiator and stepper - 1-16 steps - Scale quantizer, never miss a note again! - Variable rate, from 1/128 to 4 beats - 3 arpeggiator modes (up, down, up/down) - 3 stepper modes (forward, backward, ping-pong) - 1 to 4 octaves range - Latch mode - Pitch randomizer with probability and variance control and random octave - Rhythm event selector with probability and variance control - 6 assignable rhythm event slots - 13 rhythm event algorithms, including repeaters, stretchers, and rests - Repeat, stretch, and repeat rest probability controls for further customization of the rhythm event algorithms - Randomizable velocity and duration with variable range - 4 performance buttons that temporarily override the probabilities of pitch, rhythm, velocity, and duration - Automatable parameters
GlitchStep
This music app is a monophonic 16-step MIDI sequencer and AUv3 MIDI processor extension. It allows for real-time sequence rearrangement, song building with playlists, and dynamic performance variations. Integrate it with your favorite AUv3 hosts for enhanced music production.
- 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
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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.
Screenshots
Verdict
The clearest difference is price: ChaosArp at $3.99 against GlitchStep's $9.99. ChaosArp also leads on iOS requirement (12.0 vs 17.2). GlitchStep's advantage is update cadence (every 3 days vs fortnightly). On rating, review sentiment, ratings volume and ads there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
ChaosArp costs $3.99 and GlitchStep $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.
On the App Store both sit at effectively the same score — 4.9 for ChaosArp against 4.9 for GlitchStep. Both are backed by a comparable volume of ratings — 9 and 19 respectively. Written reviews are what separate them: 83% of ChaosArp's written reviews are positive against 89% of GlitchStep's.
ChaosArp ships an update fortnightly, GlitchStep every 3 days. The most recent releases landed on September 8, 2026 and September 22, 2026 respectively.
| Parameter | ChaosArp | GlitchStep |
|---|---|---|
| Price | $3.99 — better | $9.99 |
| Rating | 4.9 (9 ratings) | 4.9 (19 ratings) |
| Positive reviews | 83.3% of reviews | 88.9% of reviews — better |
| Number of ratings | 9 | 19 — better |
| Update frequency | Fortnightly | Every 3 days — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Paid | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Requires iOS | 12.0 — better | 17.2 |
| Further details — not scored | ||
| Size | 16 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | Axart Labs OU | Alex Matheu |
Customer experience
ChaosArp
GlitchStep
In-app purchases
ChaosArp
No in-app purchases
GlitchStep
No in-app purchases





