GS EXT vs NoiseScope
Price, ratings, monetisation and update history for both apps, side by side β with what reviewers say about each.
GS EXT
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GS EXT is a mobile client used in conjunction with the Grandstream GRP260X series phones, providing simple and fast programmable buttons to record various communication needs in office scenarios, making it convenient for users to operate communication functions with one click.
NoiseScope
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NoiseScope is a precise and reliable tool for measuring and documenting sound levels in your environment. Whether you are at a concert, at work, at home, or outdoors, NoiseScope gives you an accurate understanding of the noise around you β in real time. Measure sound levels instantly in decibels (dB) with a clear, color-coded display that helps you understand how safe or harmful the sound may be. The app also provides a rolling average to smooth out rapid fluctuations and give you a more stable picture of the overall sound environment. Measure and store noise over time Start a measurement period and track minimum, maximum, and average levels. With location access enabled, NoiseScope also records your position and marks it on a map, making it easy to document where a measurement took place. Perfect for reporting noise issues The Pro version allows you to save measurement periods and export detailed PDF reports containing all key values β time, location, and noise levels β ideal for submitting noise complaints or documenting sound conditions professionally. The Pro Version Features β’ Unlimited measurement duration β’ Save measurement periods β’ Export PDF reports with key data and map β’ Improved documentation for noise complaints Designed for clarity and ease of use NoiseScope offers a clean, intuitive interface that makes noise measurement accessible to everyone. Real-time readings can be disabled at any time to reduce battery use. Whether you need a simple sound level meter or a tool for formal documentation, NoiseScope gives you accurate, reliable, and easy-to-share results.
Screenshots
Verdict
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.
Scored on Price Β· Rating Β· Positive reviews Β· Number of ratings Β· Update frequency Β· Ads Β· In-app purchases Β· Monetization Β· Best chart rank Β· Devices Β· Requires iOS
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.
| Parameter | GS EXT | NoiseScope |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 months | Every 2 months β better |
| Ads | No | No |
| In-app purchases | No β better | Yes |
| Devices | iPhone, iPod | iPhone, iPad |
| Requires iOS | 9.0 β better | 17.6 |
| Further details β not scored | ||
| Size | 13 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | Grandstream | Tore Bergethon Γstensen |
In-app purchases
GS EXT
No in-app purchases
NoiseScope
- Pro version$2.99









