# GrainProc vs Arctic ProSynth

The clearest difference is rating: GrainProc at 4.1 against Arctic ProSynth's 3.3. GrainProc also leads on price ($2.99 vs $9.99). Arctic ProSynth's advantage is review sentiment (71% vs 60%). On ratings volume, update cadence, ads and in-app purchases there is nothing between them.

GrainProc costs $2.99 and Arctic ProSynth $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

GrainProc holds the better App Store score, 4.1 against 3.3. Both are backed by a comparable volume of ratings — 17 and 8 respectively. Written reviews complicate that: 60% of GrainProc's written reviews are positive against 71% of Arctic ProSynth's, so the app with the better star average is not the one people write more warmly about.

GrainProc ships an update every 2 months, Arctic ProSynth every 4 months. The most recent releases landed on October 13, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | GrainProc | Arctic ProSynth |
| --- | --- | --- |
| Price | **$2.99** | $9.99 |
| Rating | **[4.1 (17 ratings)](https://appshunter.io/ios/app/grainproc-granular-synthesis/id572380905/reviews)** | [3.3 (8 ratings)](https://appshunter.io/ios/app/arctic-prosynth/id676870971/reviews) |
| Number of ratings | **17** | 8 |
| Positive reviews | 60.0% of reviews | **71.4% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 4 months |
| Monetization | Paid | Paid |
| Size | 6 MB | 47 MB |
| Requires iOS | 16.0 | **15.6** |
| Devices | **iPhone, iPad** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Mayank Sanganeria](https://appshunter.io/developer/527550366) | [One Red Dog Media Pty Ltd](https://appshunter.io/developer/398933972) |

## What reviewers say

### GrainProc

[App page](https://appshunter.io/ios/app/grainproc-granular-synthesis/id572380905)

Create unique sounds and musical textures in real-time by processing external audio. This app features two parallel granular engines for layering sounds, offering a versatile tool for musicians and sound designers.

**Highlights:** Real-time granular synthesis, Two parallel grain engines, AudioBus input support, Waveform sound source manipulation, Control over volume, feedback, and density, Visual level monitoring

**Features:** macOS Compatibility

**In-app purchases:** none


### Arctic ProSynth

[App page](https://appshunter.io/ios/app/arctic-prosynth/id676870971)

Create bold and tough electronic music with a modern subtractive synthesizer. Explore rich sound design with powerful oscillators, dual filters, and versatile effects. Record and share your creations easily.

**Highlights:** HyperOscillators for fat sounds, Dual multi-mode filters, Master effects with adjustable order, Integrated Vocoder, 16x4 gated step sequencer, Live audio and MIDI recording, Preset and bank sharing

**In-app purchases:** none


## Frequently asked questions

### Is GrainProc free?

GrainProc costs $2.99, with no in-app purchases.

### Is Arctic ProSynth free?

Arctic ProSynth costs $9.99, with no in-app purchases.

### Which has better reviews, GrainProc or Arctic ProSynth?

GrainProc is rated higher. GrainProc averages 4.1 out of 5 from 17 ratings, while Arctic ProSynth averages 3.3 from 8 ratings.

### Do GrainProc or Arctic ProSynth have ads?

Neither GrainProc nor Arctic ProSynth shows ads.

### Which is updated more often, GrainProc or Arctic ProSynth?

GrainProc ships an update every 2 months, and Arctic ProSynth every 4 months. Most recently, GrainProc was updated on October 13, 2026 and Arctic ProSynth on October 15, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*