# Earth Science Systems Surveyor — For ESS GPR and GPS Devices

> For ESS GPR and GPS Devices (iPhone/iPad app by Earth Science Systems, LLC.)

- Source: https://appshunter.io/ios/app/earth-science-systems-surveyor/id6474365145 (this page in markdown: same URL + `.md`)
- Developer: [Earth Science Systems, LLC](https://appshunter.io/developer/1721440272)
- Category: Utilities
- Price: Free
- Age rating: 4+
- Requires: iOS 15.5 · 55 MB
- Languages: English
- Released: 2024-04-24
- Data updated: 2026-05-30
- User reviews in markdown: https://appshunter.io/ios/app/earth-science-systems-surveyor/id6474365145/reviews.md

## What is Earth Science Systems Surveyor?

Use Ground Penetrating Radar devices and GPS Base Stations manufactured by Earth Science Systems with your iPhone or iPad. For optimal GPS Base Station accuracy, your GPS Base Station must be authorized to receive assistance, and your iPhone or iPad must have cellular internet service.

With a GPS Base Station this app allows you to:
- Survey surface features of buried utilities in Survey mode.
- Change mode to GPR Assistance.

With a GPR Utility or GPR Concrete scanner this app allows you to:
- Perform basic GPR scans to detect subsurface objects.
- Measure depth of objects by fitting a hyperbola.
- Export scan to PDF or PNG.
- Remotely control Surveyor Pro on your Windows tablet (when used simultaneously).


## Version history (last 5 releases)

### 1.4.4 — 2026-05-27

- Improved compatibility with iOS 26.5
- Support for GPR Concrete Scanner model CS2

### 1.4.1 — 2026-04-02

Corrects an issue with GeoRanger signal processing.

### 1.4.0 — 2026-03-11

- Add support for Concrete Scanner model CS2
- Add the ability to "forget" devices (swipe right to reveal Forget button)
- Small improvements to WiFi connection process

### 1.3.0 — 2025-08-13

- Maximum scan length increased to approximately 110 meters (360 feet) for GeoRanger Utility Scanner
 - Add GPR background signal removal
 - Improved user interface for moving hyperbola fit
 - Improved responsiveness when changing GPR plot settings
 - Improved GPR plot export
 - Change GPR controls for consistency with Surveyor Pro
 - Improved appearance on edge-to-edge displays
 - Add support for additional languages

### 1.2.1 — 2025-03-05

- Fix an issue which prevented use of PointPerfect in some areas.

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## Related topics

[earth science systems surveyor](https://appshunter.io/ios/topics/earth-science-systems-surveyor) · [ess earth sciences](https://appshunter.io/ios/topics/ess-earth-sciences)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-05-30.*