# Proceq GPR Subsurface vs Gas Tech

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.

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

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.

## The numbers

| Metric | Proceq GPR Subsurface | Gas Tech |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/proceq-gpr-subsurface/id1524783895/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 months** | Every 6 months |
| Monetization | Free with in-app purchases | — |
| Size | 1.1 GB | 56 MB |
| Requires iOS | 16.0 | **12.2** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Screening Eagle Technologies](https://appshunter.io/developer/1515215362) | [Rural Computer Consultants, Inc.](https://appshunter.io/developer/640795441) |

## What reviewers say

### Proceq GPR Subsurface

[App page](https://appshunter.io/ios/app/proceq-gpr-subsurface/id1524783895)

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

**In-app purchases:** none


### Gas Tech

[App page](https://appshunter.io/ios/app/gas-tech/id6447905896)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked 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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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*