# GS EXT vs NoiseScope

The clearest difference is in-app purchases: GS EXT at none against NoiseScope's 1. GS EXT also leads on iOS requirement (9.0 vs 17.6). NoiseScope's advantage is update cadence (every 2 months vs every 9 months). On price, ads and device support there is nothing between them.

Both are free to download. NoiseScope sells 1 one-off in-app purchase. GS EXT asks for nothing beyond the download.

GS EXT ships an update every 9 months, NoiseScope every 2 months. The most recent releases landed on October 18, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | GS EXT | NoiseScope |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 9 months | **Every 2 months** |
| Size | 13 MB | 7 MB |
| Requires iOS | **9.0** | 17.6 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Grandstream](https://appshunter.io/developer/951547763) | [Tore Bergethon Østensen](https://appshunter.io/developer/1658517230) |

## What reviewers say

### GS EXT

[App page](https://appshunter.io/ios/app/gs-ext/id1597033431)

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

**In-app purchases:** none


### NoiseScope

[App page](https://appshunter.io/ios/app/noisescope/id6755631606)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro version | $2.99 | one-time |


## Frequently asked questions

### Is GS EXT free?

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

### Is NoiseScope free?

NoiseScope is free to download, with in-app purchases available.

### Do GS EXT or NoiseScope have ads?

Neither GS EXT nor NoiseScope shows ads.

### Which is updated more often, GS EXT or NoiseScope?

GS EXT ships an update every 9 months, and NoiseScope every 2 months. Most recently, GS EXT was updated on October 18, 2026 and NoiseScope on September 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.*