# GrainProc vs LH Grain

The clearest difference is rating: GrainProc at 4.2 against LH Grain's 2.3. GrainProc also leads on review sentiment (60% vs 25%) and update cadence (every 2 months vs every 15 months). LH Grain's advantage is iOS requirement (9.0 vs 16.0). On price, ads, in-app purchases and monetization model there is nothing between them.

GrainProc costs $2.99 and LH Grain $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 2.3. That said, the two scores are not equally well evidenced: GrainProc has 18 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 60% of GrainProc's written reviews are positive against 25% of LH Grain's.

GrainProc ships an update every 2 months, LH Grain every 15 months. Both last shipped on October 23, 2026.

## The numbers

| Metric | GrainProc | LH Grain |
| --- | --- | --- |
| Price | $2.99 | $2.99 |
| Rating | **[4.2 (18 ratings)](https://appshunter.io/ios/app/grainproc-granular-synthesis/id572380905/reviews)** | [2.3 (3 ratings)](https://appshunter.io/ios/app/lh-grain/id673676932/reviews) |
| Number of ratings | **18** | 3 |
| Positive reviews | **60.0% of reviews** | 25.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 15 months |
| Monetization | Paid | Paid |
| Size | 6 MB | 34 MB |
| Requires iOS | 16.0 | **9.0** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Mayank Sanganeria](https://appshunter.io/developer/527550366) | [昊 刘](https://appshunter.io/developer/652348004) |

## 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


### LH Grain

[App page](https://appshunter.io/ios/app/lh-grain/id673676932)

Create intricate soundscapes and dynamic audio effects with a dual-channel granular synthesizer. Features include diverse amplitude envelopes, extensive audio effects, and intuitive live performance tools like a touchpad and customizable pitch bar.

**Highlights:** Dual-channel granular synthesis, 8 amplitude envelope options, 10 integrated audio effects, Real-time touchpad control, Customizable pitch bar, OSC compatibility, Record and share sound files

**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 LH Grain free?

LH Grain costs $2.99, with no in-app purchases.

### Which has better reviews, GrainProc or LH Grain?

GrainProc is rated higher. GrainProc averages 4.2 out of 5 from 18 ratings, while LH Grain averages 2.3 from 3 ratings.

### Do GrainProc or LH Grain have ads?

Neither GrainProc nor LH Grain shows ads.

### Which is updated more often, GrainProc or LH Grain?

GrainProc ships an update every 2 months, and LH Grain every 15 months. Most recently, GrainProc was updated on October 23, 2026 and LH Grain 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.*