# GrainProc vs 76477 Complex Sound Synth

The clearest difference is rating: GrainProc at 4.2 against 76477 Complex Sound Synth's 3.9. GrainProc also leads on review sentiment (60% vs 50%). 76477 Complex Sound Synth's advantage is iOS requirement (12.0 vs 16.0). On price, ratings volume, update cadence and ads there is nothing between them.

GrainProc costs $2.99 and 76477 Complex Sound Synth $2.99 up front. Neither carries in-app purchases, so what you see is what you pay.

GrainProc holds the better App Store score, 4.2 against 3.9. Both are backed by a comparable volume of ratings — 18 and 9 respectively. Written reviews point the same way: 60% of GrainProc's written reviews are positive against 50% of 76477 Complex Sound Synth's.

GrainProc ships an update every 2 months, 76477 Complex Sound Synth every 3 months. Both last shipped on October 23, 2026.

## The numbers

| Metric | GrainProc | 76477 Complex Sound Synth |
| --- | --- | --- |
| Price | $2.99 | $2.99 |
| Rating | **[4.2 (18 ratings)](https://appshunter.io/ios/app/grainproc-granular-synthesis/id572380905/reviews)** | [3.9 (9 ratings)](https://appshunter.io/ios/app/76477-complex-sound-synth/id837866239/reviews) |
| Number of ratings | **18** | 9 |
| Positive reviews | **60.0% of reviews** | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Paid | Paid |
| Size | 6 MB | 4 MB |
| Requires iOS | 16.0 | **12.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Mayank Sanganeria](https://appshunter.io/developer/527550366) | [Black Cat Systems](https://appshunter.io/developer/301047032) |

## 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


### 76477 Complex Sound Synth

[App page](https://appshunter.io/ios/app/76477-complex-sound-synth/id837866239)

Create complex sound effects and music with a powerful synthesizer inspired by vintage hardware. Offers extensive modulation, noise generation, and customizable envelopes. Easily share your creations and control it with MIDI devices.

**Highlights:** Three oscillators with multiple wave types, Modulation capabilities for oscillators, Adjustable noise generator with filter, Configurable ADSR envelope, Unlimited sound effect generator boards, MIDI input support, Export/import sound effect boards

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is GrainProc free?

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

### Is 76477 Complex Sound Synth free?

76477 Complex Sound Synth costs $2.99, with no in-app purchases.

### Which has better reviews, GrainProc or 76477 Complex Sound Synth?

GrainProc is rated higher. GrainProc averages 4.2 out of 5 from 18 ratings, while 76477 Complex Sound Synth averages 3.9 from 9 ratings.

### Do GrainProc or 76477 Complex Sound Synth have ads?

Neither GrainProc nor 76477 Complex Sound Synth shows ads.

### Which is updated more often, GrainProc or 76477 Complex Sound Synth?

GrainProc ships an update every 2 months, and 76477 Complex Sound Synth every 3 months. Most recently, GrainProc was updated on October 23, 2026 and 76477 Complex Sound Synth on October 23, 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.*