Comparison

Proceq GPR Subsurface vs Gas Tech

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Proceq GPR Subsurface

This application uses radar technology to create detailed 3D images of underground structures. It helps detect utilities, verify as-built maps, and perform structural investigations with intuitive on-site analysis and cloud collaboration features.

Highlights
  • Subsurface 3D imaging
  • Utility line detection
  • As-built map verification
  • Real-time Augmented Reality visualization
  • On-site data annotation
  • Cloud-based collaboration and export
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Proceq GPR Subsurface: Powerful sensors with radar beams for subsurface mapping applications. Intelligent software at your fingertips. The mission behind Proceq GPR Subsurface is simple: Scan the underground to provide a clear 3D image of what lies beneath, to detect and map the findings effortlessly and reliably, and to collaborate anywhere, anytime, for utility strike prevention, as-built map verification, structural investigations and various geophysical applications. The revolutionary Proceq GS series is the world’s most advanced subsurface mapping system, equipped with Stepped-Frequency Continuous-Wave (SFCW) technology and precise GNSS positioning. The true-ultrawideband antenna system and Swiss-made, optimized electronics deliver unparalleled resolution and penetration depth - at the same time. The magic starts once you connect the GS9000 or GS8000 wireless to your iPad and fire up the Proceq GPR Subsurface app. The carefully designed user interface increases your productivity by making measurements and analysis simple and intuitive; for example, by switching between top and sectional views with a simple gesture. A rich feature set brings advanced workflows on-site, so that you can get more things done while in the field. See the heatmap of the subsurface form in front of your eyes at the specified depth range, annotate your findings with precise geolocation, tags, photos, voice memos and comments in the logbook. Access and share them with colleagues anywhere, anytime, and export your measurements in one click, in the form of rich reports, the most common CAD/GIS mapping formats, or raw data for further processing, all over the cloud. Detect utility lines and label them accordingly to produce as-built maps, or digitize any other findings on the ground. Get an instant understanding of what is below your feet with the revolutionary Free Path 3D real-time visualization, or superimpose your area scans onto the real world with Augmented Reality - unique features in the industry. Download the free app now and explore the state of the art of subsurface mapping with the included demo files.

About

Gas Tech

Features
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Information at your fingertips! This app gives you direct access to your account balance, location and contract information. It also gives you the ability to store and process payment and request service work and deliveries directly through the app.

Screenshots

Gas Tech3 screens

Verdict

The call

The clearest difference is device support: Gas Tech at 3 against Proceq GPR Subsurface's 1. Gas Tech also leads on iOS requirement (12.2 vs 16.0). On price, update cadence, ads and in-app purchases 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

CostPrice · In-app purchases · Ads · Monetization

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

UpkeepUpdate frequency

Proceq GPR Subsurface ships an update every 3 months, Gas Tech every 6 months. The most recent releases landed on September 15, 2026 and September 20, 2026 respectively.

Scorecard2 real differences · 8 level
Proceq GPR Subsurface versus Gas Tech: the parameters behind the verdict, then further details
ParameterProceq GPR SubsurfaceGas Tech
PriceFreeFree
Rating5.0 (3 ratings) — better—
Positive reviews50.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 3 months — betterEvery 6 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree with in-app purchases—
DevicesiPadiPhone, iPad, iPod — better
Requires iOS16.012.2 — better
Further details — not scored
Size1.1 GB56 MB
Age rating4+4+
DeveloperScreening Eagle TechnologiesRural Computer Consultants, Inc.

In-app purchases

None

Proceq GPR Subsurface

No in-app purchases

None

Gas Tech

No in-app purchases

Questions

Is Proceq GPR Subsurface free?
Proceq GPR Subsurface is free to download, with no in-app purchases.
Is Gas Tech free?
Gas Tech is free to download, with no in-app purchases.
Do Proceq GPR Subsurface or Gas Tech have ads?
Neither Proceq GPR Subsurface nor Gas Tech shows ads.
Which is updated more often, Proceq GPR Subsurface or Gas Tech?
Proceq GPR Subsurface ships an update every 3 months, and Gas Tech every 6 months. Most recently, Proceq GPR Subsurface was updated on September 15, 2026 and Gas Tech on September 20, 2026.

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