Glossmeter vs Earth Science Systems Surveyor
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Glossmeter
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The ZG Glossmeter app coupled with the Zehntner ZG8000 probe enables coating suppliers, product manufacturers and quality inspectors to inspect the quality - easily and effortlessly-of coatings/plastics' surface appearance. It also helps to reduce your efforts in quality assurance operations. For example, the app automatically calculates measurement statistics and displays the series with bar graphs, thus reducing manual transcription errors. The synchronization and sharing of your measurements with eagle Workspace also eliminates the use of easy-to-lose USB drives (or paper scraps) with measurements. A simple digital workflow makes standards-compliant reporting a breeze, with just a couple of taps. The ever-increasing speed and complexity of supply chain operations, combined with the demand for exemplary quality, means that the need for traceability of manufacturing and quality assurance has become paramount for all kinds of products and services. Like the groundbreaking Equotip Hardness Tester, Proceq GPR and Pundit Array apps, the Zehntner Glossmeter app also features our unique Logbook feature. Geolocation, voice, image and text annotations enrich the Logbook of each measurement. Instantaneous synchronization with the eagle Workspace means that the lead time from measurement to sign-off is mere seconds. The eagle Workspace web interface makes it possible to centrally monitor incoming measurements and intervene quickly, thus saving time and money by preventing rework.
Earth Science Systems Surveyor
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Use Ground Penetrating Radar devices and GPS Base Stations manufactured by Earth Science Systems with your iPhone or iPad. For optimal GPS Base Station accuracy, your GPS Base Station must be authorized to receive assistance, and your iPhone or iPad must have cellular internet service. With a GPS Base Station this app allows you to: - Survey surface features of buried utilities in Survey mode. - Change mode to GPR Assistance. With a GPR Utility or GPR Concrete scanner this app allows you to: - Perform basic GPR scans to detect subsurface objects. - Measure depth of objects by fitting a hyperbola. - Export scan to PDF or PNG. - Remotely control Surveyor Pro on your Windows tablet (when used simultaneously).
Screenshots
Verdict
The clearest difference is ads: Earth Science Systems Surveyor at none against Glossmeter's shown. Earth Science Systems Surveyor also leads on update cadence (every 3 months vs every 6 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Glossmeter ships an update every 6 months, Earth Science Systems Surveyor every 3 months. The most recent releases landed on October 25, 2026 and September 15, 2026 respectively.
| Parameter | Glossmeter | Earth Science Systems Surveyor |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 6 months | Every 3 months — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 15.0 — better | 15.5 |
| Further details — not scored | ||
| Size | 376 MB | 55 MB |
| Age rating | 4+ | 4+ |
| Developer | Screening Eagle Technologies | Earth Science Systems, LLC |
In-app purchases
Glossmeter
No in-app purchases
Earth Science Systems Surveyor
No in-app purchases
Questions
Is Glossmeter free?
Is Earth Science Systems Surveyor free?
Do Glossmeter or Earth Science Systems Surveyor have ads?
Which is updated more often, Glossmeter or Earth Science Systems Surveyor?
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