Comparison

GSDSP MagicDelay vs ChaosArp

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

GSDSP MagicDelay

This app offers a unique spectral delay effect with advanced control over thousands of parallel delays using a single curve. It allows for real-time modulation, tempo-syncing, and precise feedback management for expansive sonic exploration.

Highlights
  • Spectral delay with single curve control
  • Tempo-synced grids and free-flowing motion
  • Real-time curve modulation and morphing
  • dB/s feedback decay system
  • Built-in highpass and lowpass filters
  • Crossfeed for stereo image expansion
  • Feedback Over for values beyond 100%
Features
Read full description

Do we need yet another Delay? Of course! We need thousands of delays working in parallel with full spectral control. One Curve. Infinite Delays. MagicDelay lets you control thousands of spectral delays with a single, elegant curve. Apply BPM-type grids to lock your shapes perfectly to the tempo, or let them flow freely for more experimental motion. With the powerful Curve Modifier, you can modulate, morph, and reshape your delay patterns in real time — turning one curve into endless rhythmic and spectral variations. Thoughtful Feedback control Control your delay tails using either traditional feedback in percent or our unique dB-per-second decay system — created specifically to manage the feedback of many varying delay times at once. Using dB/s ensures predictable, consistent tail lengths across the entire spectrum, even in the most complex settings. Sculpt the Spectrum Refine your delays with built-in highpass and lowpass filters, adding warmth, clarity, or sparkle exactly where needed. Activate Crossfeed to expand your stereo image and create immersive, wide-angle motion. And when things get wild, use Kill to instantly mute and clear the delay line — total control at any moment. Beyond 100% Need more? Push into new sonic territory with Feedback Over, allowing feedback values beyond the traditional 100% limit. From endless atmospheric swells to self-oscillating spectral chaos, MagicDelay gives you room to explore — and break — the rules. A New Dimension of Delay Whether you’re a musician, sound designer, or producer, MagicDelay is a spectral playground built for discovery. Its multi-curve design, deep modulation system, and flexible feedback architecture make it a truly expressive tool for shaping delays far beyond the ordinary. MagicDelay is an AUv3 audio effect plugin compatible with Logic Pro, AUM, Cubasis, GarageBand and many more. A Desktop version is also available for Windows and macOS (VST3 / AU / AAX). More information here: https://gs-dsp.com/products

About

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.

Highlights
  • 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
Read full description

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

Screenshots

GSDSP MagicDelay3 screens
ChaosArp4 screens

Verdict

The call

The clearest difference is review sentiment: ChaosArp at 83% against GSDSP MagicDelay's 25%. ChaosArp also leads on price ($3.99 vs $29.99) and rating (4.9 vs 4.7). On ratings volume, ads, in-app purchases and monetization model 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

CostPrice · In-app purchases · Ads · Monetization

GSDSP MagicDelay costs $29.99 and ChaosArp $3.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

ChaosArp holds the better App Store score, 4.9 against 4.7. Both are backed by a comparable volume of ratings — 14 and 9 respectively. Written reviews point the same way: 25% of GSDSP MagicDelay's written reviews are positive against 83% of ChaosArp's.

UpkeepUpdate frequency

GSDSP MagicDelay ships an update every 5 weeks, ChaosArp every 2 weeks. The most recent releases landed on October 9, 2026 and October 11, 2026 respectively.

Scorecard4 real differences · 6 level
GSDSP MagicDelay versus ChaosArp: the parameters behind the verdict, then further details
ParameterGSDSP MagicDelayChaosArp
Price$29.99$3.99 — better
Rating4.7 (14 ratings)4.9 (9 ratings) — better
Positive reviews25.0% of reviews83.3% of reviews — better
Number of ratings14 — better9
Update frequencyEvery 5 weeksEvery 2 weeks — better
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better13.0
Further details — not scored
Size72 MB17 MB
Age rating4+4+
DeveloperGustav ScholdaAchillefs Sourlas

Customer experience

GSDSP MagicDelay

All ratings14 ratings
Positive92.9%
Neutral0.0%
Negative7.1%
Written reviews4 reviews
Positive25.0%
Neutral25.0%
Negative50.0%

ChaosArp

All ratings9 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews6 reviews
Positive83.3%
Neutral0.0%
Negative16.7%

In-app purchases

None

GSDSP MagicDelay

No in-app purchases

None

ChaosArp

No in-app purchases

Questions

Is GSDSP MagicDelay free?
GSDSP MagicDelay costs $29.99, with no in-app purchases.
Is ChaosArp free?
ChaosArp costs $3.99, with no in-app purchases.
Which has better reviews, GSDSP MagicDelay or ChaosArp?
ChaosArp is rated higher. GSDSP MagicDelay averages 4.7 out of 5 from 14 ratings, while ChaosArp averages 4.9 from 9 ratings.
Do GSDSP MagicDelay or ChaosArp have ads?
Neither GSDSP MagicDelay nor ChaosArp shows ads.
Which is updated more often, GSDSP MagicDelay or ChaosArp?
GSDSP MagicDelay ships an update every 5 weeks, and ChaosArp every 2 weeks. Most recently, GSDSP MagicDelay was updated on October 9, 2026 and ChaosArp on October 11, 2026.

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