# GRM studio vs e

The clearest difference is update cadence: GRM studio at weekly against e's every 2 months. GRM studio also leads on iOS requirement (9.3 vs 15.0). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

GRM studio ships an update weekly, e every 2 months. The most recent releases landed on October 2, 2026 and September 29, 2026 respectively.

## The numbers

| Metric | GRM studio | e |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.0 (1 ratings)](https://appshunter.io/ios/app/grm-studio/id1448936613/reviews)** | — |
| Number of ratings | **1** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Weekly** | Every 2 months |
| Monetization | Free | — |
| Size | 35 MB | 23 MB |
| Requires iOS | **9.3** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Institut National de l'Audiovisuel](https://appshunter.io/developer/480730772) | [Erda](https://appshunter.io/developer/1587686032) |

## 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


### e

[App page](https://appshunter.io/ios/app/e-tuner/id1587686030)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GRM studio free?

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

### Is e free?

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

### Do GRM studio or e have ads?

Neither GRM studio nor e shows ads.

### Which is updated more often, GRM studio or e?

GRM studio ships an update weekly, and e every 2 months. Most recently, GRM studio was updated on October 2, 2026 and e on September 29, 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.*