# GRM studio vs BLEASS Granulizer

The clearest difference is price: GRM studio at Free against BLEASS Granulizer's $6.99. GRM studio also leads on review sentiment (100% vs 67%) and update cadence (weekly vs every 26 months). BLEASS Granulizer's advantage is rating (4.9 vs 4.0) and ratings volume (40 vs 1). On ads, in-app purchases and device support there is nothing between them.

GRM studio is free to download; BLEASS Granulizer costs $6.99 up front. Neither carries in-app purchases, so what you see is what you pay.

BLEASS Granulizer holds the better App Store score, 4.9 against 4.0. That said, the two scores are not equally well evidenced: BLEASS Granulizer has 40 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 100% of GRM studio's written reviews are positive against 67% of BLEASS Granulizer's, so the app with the better star average is not the one people write more warmly about.

GRM studio ships an update weekly, BLEASS Granulizer every 26 months. The most recent releases landed on October 18, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | GRM studio | BLEASS Granulizer |
| --- | --- | --- |
| Price | **Free** | $6.99 |
| Rating | [4.0 (1 ratings)](https://appshunter.io/ios/app/grm-studio/id1448936613/reviews) | **[4.9 (40 ratings)](https://appshunter.io/ios/app/bleass-granulizer/id1540299083/reviews)** |
| Number of ratings | 1 | **40** |
| Positive reviews | **100.0% of reviews** | 66.7% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 26 months |
| Monetization | **Free** | Paid |
| Best chart rank | — | **#181** |
| Size | 35 MB | 27 MB |
| Requires iOS | **9.3** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Institut National de l'Audiovisuel](https://appshunter.io/developer/480730772) | [BLEASS](https://appshunter.io/developer/1220444177) |

## What reviewers say

### GRM studio

[App page](https://appshunter.io/ios/app/grm-studio/id1448936613)

This music creation app offers advanced sound manipulation tools for musicians and sound designers. Explore and edit audio files through direct waveform manipulation and multiple playback processes.

**Highlights:** Real-time sound transformation simulation, Direct waveform exploration, Virtual editing and montage, Multiple playback processes, Granular synthesis

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

**In-app purchases:** none


### BLEASS Granulizer

[App page](https://appshunter.io/ios/app/bleass-granulizer/id1540299083)

**Currently charting:** #181 Top Paid · Music (US App Store)

Transform audio into evolving textures and soundscapes with this granular effect processor. Slice audio into grains and modulate parameters like volume, pitch, and playback direction with a real-time 3D visualizer. Sync to host tempo for dynamic sound design.

**Highlights:** Granular effect processor, Real-time parameter modulation, 3D visualizer, Randomization controls, Tempo syncing, Multi-bus audio input

**In-app purchases:** none


## Frequently asked questions

### Is GRM studio free?

GRM studio is free to download, with no in-app purchases.

### Is BLEASS Granulizer free?

BLEASS Granulizer costs $6.99, with no in-app purchases.

### Which has better reviews, GRM studio or BLEASS Granulizer?

BLEASS Granulizer is rated higher. GRM studio averages 4.0 out of 5 from 1 ratings, while BLEASS Granulizer averages 4.9 from 40 ratings.

### Do GRM studio or BLEASS Granulizer have ads?

Neither GRM studio nor BLEASS Granulizer shows ads.

### Which is updated more often, GRM studio or BLEASS Granulizer?

GRM studio ships an update weekly, and BLEASS Granulizer every 26 months. Most recently, GRM studio was updated on October 18, 2026 and BLEASS Granulizer on October 27, 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.*