# GTRS vs iDma Professional Edition

The clearest difference is update cadence: iDma Professional Edition at every 6 days against GTRS's every 5 weeks. iDma Professional Edition also leads on device support (4 vs 2). On price, ads, in-app purchases and iOS requirement there is nothing between them.

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

GTRS ships an update every 5 weeks, iDma Professional Edition every 6 days. The most recent releases landed on November 3, 2026 and November 4, 2026 respectively.

## The numbers

| Metric | GTRS | iDma Professional Edition |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[2.9 (16 ratings)](https://appshunter.io/ios/app/gtrs/id1491879128/reviews)** | — |
| Number of ratings | **16** | — |
| Positive reviews | 37.5% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 6 days** |
| Monetization | Free | — |
| Size | 219 MB | 44 MB |
| Requires iOS | 15.6 | 15.6 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | 17+ |
| Developer | [mooer](https://appshunter.io/developer/1384361853) | [SHANGHAI CREATIVE IDEA ELECTRONIC CO. LTD](https://appshunter.io/developer/1746465823) |

## What reviewers say

### GTRS

[App page](https://appshunter.io/ios/app/gtrs/id1491879128)

Control your GTRS guitar hardware with this app. It offers real-time status updates, quick switching of over 110 effect models, and the ability to load different guitar sample files for varied tones. Features include a virtual footswitch, tuner, metronome, and cloud storage for your files.

**Highlights:** Low latency Bluetooth connectivity, 110+ effect models, Load custom guitar sample files, Virtual footswitch, Built-in tuner and metronome, Cloud file upload/download

**Features:** Vision Pro support

**In-app purchases:** none


### iDma Professional Edition

[App page](https://appshunter.io/ios/app/idma-professional-edition/id6740393190)

**In-app purchases:** none


## Frequently asked questions

### Is GTRS free?

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

### Is iDma Professional Edition free?

iDma Professional Edition is free to download, with no in-app purchases.

### Do GTRS or iDma Professional Edition have ads?

Neither GTRS nor iDma Professional Edition shows ads.

### Which is updated more often, GTRS or iDma Professional Edition?

GTRS ships an update every 5 weeks, and iDma Professional Edition every 6 days. Most recently, GTRS was updated on November 3, 2026 and iDma Professional Edition on November 4, 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.*