# Proceq GPR Subsurface vs Inline Group Inc.

The clearest difference is update cadence: Inline Group Inc. at every 3 weeks against Proceq GPR Subsurface's every 3 months. Inline Group Inc. also leads on device support (3 vs 1) and iOS requirement (12.1 vs 16.0). On price, 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, Inline Group Inc. every 3 weeks. The most recent releases landed on September 15, 2026 and September 27, 2026 respectively.

## The numbers

| Metric | Proceq GPR Subsurface | Inline Group Inc. |
| --- | --- | --- |
| 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 3 weeks** |
| Monetization | Free with in-app purchases | — |
| Size | 1.1 GB | 48 MB |
| Requires iOS | 16.0 | **12.1** |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 17+ |
| Developer | [Screening Eagle Technologies](https://appshunter.io/developer/1515215362) | [Inline Group Inc.](https://appshunter.io/developer/1646602589) |

## 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


### Inline Group Inc.

[App page](https://appshunter.io/ios/app/inline-group-inc/id6443500175)

**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 Inline Group Inc. free?

Inline Group Inc. is free to download, with no in-app purchases.

### Do Proceq GPR Subsurface or Inline Group Inc. have ads?

Neither Proceq GPR Subsurface nor Inline Group Inc. shows ads.

### Which is updated more often, Proceq GPR Subsurface or Inline Group Inc.?

Proceq GPR Subsurface ships an update every 3 months, and Inline Group Inc. every 3 weeks. Most recently, Proceq GPR Subsurface was updated on September 15, 2026 and Inline Group Inc. on September 27, 2026.

---

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