# Trimble vs Proceq GPR Subsurface

The clearest difference is rating: Proceq GPR Subsurface at 5.0 against Trimble's 3.4. Proceq GPR Subsurface also leads on review sentiment (50% vs 22%). Trimble's advantage is update cadence (every 3 weeks vs every 3 months) and ratings volume (29 vs 3). On price, ads, in-app purchases and monetization model 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 holds the better App Store score, 5.0 against 3.4. That said, the two scores are not equally well evidenced: Trimble has 29 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 22% of Trimble's written reviews are positive against 50% of Proceq GPR Subsurface's.

Trimble ships an update every 3 weeks, Proceq GPR Subsurface every 3 months. The most recent releases landed on November 3, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | Trimble | Proceq GPR Subsurface |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.4 (29 ratings)](https://appshunter.io/ios/app/trimble-connect/id1076606537/reviews) | **[5.0 (3 ratings)](https://appshunter.io/ios/app/proceq-gpr-subsurface/id1524783895/reviews)** |
| Number of ratings | **29** | 3 |
| Positive reviews | 21.9% of reviews | **50.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 3 months |
| Monetization | Free | Free |
| Size | 176 MB | 1.1 GB |
| Requires iOS | **15.0** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPad |
| Age rating | 4+ | 4+ |
| Developer | [Trimble Inc.](https://appshunter.io/developer/322561665) | [Screening Eagle Technologies](https://appshunter.io/developer/1515215362) |

## What reviewers say

### Trimble

[App page](https://appshunter.io/ios/app/trimble-connect/id1076606537)

This cloud-based platform facilitates collaboration for construction projects. It allows stakeholders to share, comment on, and manage project documents, photos, drawings, and 3D models across all project phases. Access information seamlessly on desktop, web, or mobile, even offline.

**Highlights:** Cloud-based project collaboration, Document, photo, drawing, and 3D model sharing, Offline access for field professionals, High-performance 3D model viewer, Task management (ToDos), Cross-platform accessibility

**Features:** Vision Pro support

**In-app purchases:** none


### Proceq GPR Subsurface

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

This app uses powerful radar sensors to create clear 3D images of underground structures. It helps detect and map utilities, verify as-built maps, and perform structural investigations with intelligent software and advanced visualization tools.

**Highlights:** 3D subsurface imaging, Utility line detection and labeling, As-built map verification, Structural investigation, Augmented Reality visualization, On-site data annotation, Cloud-based collaboration and export

**In-app purchases:** none


## Frequently asked questions

### Is Trimble free?

Trimble is free to download, with no in-app purchases.

### Is Proceq GPR Subsurface free?

Proceq GPR Subsurface is free to download, with no in-app purchases.

### Which has better reviews, Trimble or Proceq GPR Subsurface?

Proceq GPR Subsurface is rated higher. Trimble averages 3.4 out of 5 from 29 ratings, while Proceq GPR Subsurface averages 5.0 from 3 ratings.

### Do Trimble or Proceq GPR Subsurface have ads?

Neither Trimble nor Proceq GPR Subsurface shows ads.

### Which is updated more often, Trimble or Proceq GPR Subsurface?

Trimble ships an update every 3 weeks, and Proceq GPR Subsurface every 3 months. Most recently, Trimble was updated on November 3, 2026 and Proceq GPR Subsurface on November 7, 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.*