# Proceq GPR Solo vs NX Control

The clearest difference is update cadence: NX Control at every 6 weeks against Proceq GPR Solo's every 4 months. NX Control also leads on device support (3 vs 1). On price, rating, ratings volume and ads there is nothing between them.

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

On the App Store both sit at effectively the same score — 5.0 for Proceq GPR Solo against 5.0 for NX Control. Both are backed by a comparable volume of ratings — 1 and 2 respectively.

Proceq GPR Solo ships an update every 4 months, NX Control every 6 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | Proceq GPR Solo | NX Control |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/proceq-gpr-solo/id6738166195/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/nx-control/id6796787363/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 4 months | **Every 6 weeks** |
| Monetization | Free | Free |
| Size | 569 MB | 18 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Screening Eagle Technologies](https://appshunter.io/developer/1515215362) | [GSSI Geophysical Survey Systems, Inc.](https://appshunter.io/developer/6796787366) |

## What reviewers say

### Proceq GPR Solo

[App page](https://appshunter.io/ios/app/proceq-gpr-solo/id6738166195)

This app works with specialized sensors to provide detailed subsurface imaging of concrete structures. It allows for object detection, structural investigation, and as-built verification, with features like augmented reality and on-site data enrichment.

**Highlights:** Subsurface concrete imaging, Object detection, Augmented reality overlay, On-site data enrichment, Logbook with geolocation and tags, Export to SEGY format

**In-app purchases:** none


### NX Control

[App page](https://appshunter.io/ios/app/nx-control/id6796787363)

This application transforms your iPhone or iPad into a control and display for GSSI NX-series ground penetrating radar systems. It allows for live data collection, in-field interpretation with target marking and calibration, and project organization with photo attachments.

**Highlights:** Live 2D radar profiles, Quick Scan for single-line collection, Target marking with distance/depth, Depth calibration, Gain tuning, Project organization, Attach photos to scans

**In-app purchases:** none


## Frequently asked questions

### Is Proceq GPR Solo free?

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

### Is NX Control free?

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

### Which has better reviews, Proceq GPR Solo or NX Control?

Proceq GPR Solo and NX Control are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do Proceq GPR Solo or NX Control have ads?

Neither Proceq GPR Solo nor NX Control shows ads.

### Which is updated more often, Proceq GPR Solo or NX Control?

Proceq GPR Solo ships an update every 4 months, and NX Control every 6 weeks. Most recently, Proceq GPR Solo was updated on October 24, 2026 and NX Control on October 24, 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.*