Comparison

Aurora (MIDI Controller) vs GSDSP Quantum Granulator

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

Head to head
About

Aurora (MIDI Controller)

Transform space weather data into musical expression with this live MIDI controller. Connect to your DAW and map real-time electromagnetic readings to create unique soundscapes and dynamic tracks.

Highlights
  • Live data streaming from observatories
  • Flexible MIDI mapping
  • Connects to DAWs like Ableton Live
  • Cross-platform compatibility (iOS, macOS)
  • Creates ambient and techno music
Features
Read full description

Aurora is a live MIDI controller powered by real-time data from space weather observatories and satellites. Connect Aurora to your favorite DAW (like Ableton Live) and transform electromagnetic readings into musical expression. Features: • Live data streaming from NOAA and Dombås observatory • Flexible MIDI mapping for CC controls • Works across iPhone, iPad, and Mac Catalyst Whether you're crafting ambient soundscapes or building dynamic techno tracks, Aurora connects your music to the rhythms of the planet.

About

GSDSP Quantum Granulator

This live granular processor allows you to break down audio into small pieces or create atmospheric soundscapes. It features dual live buffers, a musical grain engine with tempo sync, and expressive pitch control with MIDI support. Shape your sound with an intuitive XY pad and mix section for detailed sonic manipulation.

Highlights
  • Dual live recording buffers
  • Tempo-synced grain triggering
  • Expressive pitch control with scales
  • 2D XY pad for grain shaping
  • MIDI playable granular instrument
  • AUv3 audio effect plugin
Features
Read full description

This Live Granular Processor lets you decompose audio into bits and pieces or lovely clouds. Dual Live Buffers Quantum Granulator is a powerful live granular processor designed for deep, hands-on sonic manipulation in real-time. Two independent recording buffers capture your signal and let you freeze, loop, or continuously record audio for instant transformation. Whether you’re sampling from the Main Input, Sidechain A, or Sidechain B, you’re in full control of what goes in — and what comes out. Musical Grain Engine Trigger grains freely in Hz or lock them to tempo for tight rhythmic effects. Adjust grain length, offset and density — from crisp stutters to blurred, cinematic clouds. Randomization adapts to your mode: in Hz it behaves like a geiger counter, adding sharp, bursty unpredictability; in BPM sync it becomes more spray-like, scattering grains around the beat for rhythmically coherent textures. Expressive Pitch Control Our easy-to-use scale picker lets you quantize grains to 30+ built-in musical scales, create your own, or let randomness take over. Play grains via MIDI to turn Quantum Granulator into an expressive granular instrument. Pitch shifting covers a broad ±24 semitone range and a separate fine control allows subtle adjustments within ±1 semitone, perfect for microtonal tuning or adding vibrato-like motion. Versatile Grain Shaping An intuitive 2D Envelope XY pad lets you sharpen or soften vertically, adjust attack and release horizontally. Control level, panning, and filtering to craft subtle movement or fully chaotic sound clusters. Shape the balance using the mix section — from subtle texture to complete granular obliteration. Granular Synthesis, Made Playable Quantum Granulator isn’t just a tool — it’s an instrument. Built for performers, producers, and sound explorers alike, it offers a deep but immediate interface into the world of granular synthesis, with every detail tuned for musicality and expression. Quantum Granulator 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

Screenshots

Aurora (MIDI Controller)4 screens
GSDSP Quantum Granulator3 screens

Verdict

The call

Aurora (MIDI Controller) and GSDSP Quantum Granulator both sit at 5.0 stars, but that hides the real split: 100% of GSDSP Quantum Granulator's written reviews are positive against 50% of Aurora (MIDI Controller)'s. GSDSP Quantum Granulator also leads on ratings volume (7 vs 2) and iOS requirement (12.0 vs 16.6). Aurora (MIDI Controller)'s advantage is price ($2.99 vs $14.99) and update cadence (every 8 days vs every 5 weeks). On rating, 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

Aurora (MIDI Controller) costs $2.99 and GSDSP Quantum Granulator $14.99 up front. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Aurora (MIDI Controller) against 5.0 for GSDSP Quantum Granulator. Both are backed by a comparable volume of ratings — 2 and 7 respectively. Written reviews are what separate them: 50% of Aurora (MIDI Controller)'s written reviews are positive against 100% of GSDSP Quantum Granulator's.

UpkeepUpdate frequency

Aurora (MIDI Controller) ships an update every 8 days, GSDSP Quantum Granulator every 5 weeks. The most recent releases landed on June 3, 2026 and September 22, 2026 respectively.

Scorecard5 real differences · 5 level
Aurora (MIDI Controller) versus GSDSP Quantum Granulator: the parameters behind the verdict, then further details
ParameterAurora (MIDI Controller)GSDSP Quantum Granulator
Price$2.99 — better$14.99
Rating5.0 (2 ratings)5.0 (7 ratings)
Positive reviews50.0% of reviews100.0% of reviews — better
Number of ratings27 — better
Update frequencyEvery 8 days — betterEvery 5 weeks
AdsNoNo
In-app purchasesNoNo
MonetizationPaidPaid
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.612.0 — better
Further details — not scored
Size6 MB61 MB
Age rating4+4+
DeveloperJason SnellGustav Scholda

Customer experience

Aurora (MIDI Controller)

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

GSDSP Quantum Granulator

All ratings7 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

None

Aurora (MIDI Controller)

No in-app purchases

None

GSDSP Quantum Granulator

No in-app purchases

Questions

Is Aurora (MIDI Controller) free?
Aurora (MIDI Controller) costs $2.99, with no in-app purchases.
Is GSDSP Quantum Granulator free?
GSDSP Quantum Granulator costs $14.99, with no in-app purchases.
Which has better reviews, Aurora (MIDI Controller) or GSDSP Quantum Granulator?
Aurora (MIDI Controller) and GSDSP Quantum Granulator are both rated 5.0 out of 5 on the App Store, from 2 and 7 ratings respectively.
Do Aurora (MIDI Controller) or GSDSP Quantum Granulator have ads?
Neither Aurora (MIDI Controller) nor GSDSP Quantum Granulator shows ads.
Which is updated more often, Aurora (MIDI Controller) or GSDSP Quantum Granulator?
Aurora (MIDI Controller) ships an update every 8 days, and GSDSP Quantum Granulator every 5 weeks. Most recently, Aurora (MIDI Controller) was updated on June 3, 2026 and GSDSP Quantum Granulator on September 22, 2026.

Other comparisons