# Geosensors — A geophysical surveying tool

> Geophysical surveying tool companion for Geosensors Logger hardware. (iPhone/iPad app by Geosensors.)

- Source: https://appshunter.io/ios/app/geosensors/id1162783006 (this page in markdown: same URL + `.md`)
- Developer: [Geosensors](https://appshunter.io/developer/1162783005)
- Category: Utilities
- Price: Free
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 10.3 · 19 MB
- Languages: American English
- Released: 2018-08-26
- Data updated: 2026-07-08
- Monetization: free
- User reviews in markdown: https://appshunter.io/ios/app/geosensors/id1162783006/reviews.md

## What is Geosensors?

The Geosensors app is the companion to the Geosensors Logger hardware that together make up a powerful geophysical surveying tool. The logger connects to an electromagnetic sensor and an external GPS device in order to provide all the information necessary to carry out a successful geophysical survey. The app connects to the logger via WiFi and allows a surveyor to monitor live data from the EM sensor, set-up and record a new survey, transfer completed survey data to the app, view the summary details and then email the data for further processing on a desktop computer. 

Note that to get the best use out of this app, it must be connected to a Geosensors Logger. Please contact us if you need to purchase a logger and/or EM sensor. 

Features:
- Connect to a Geosensors Logger via WiFi
- View EM and GPS data as it is being recorded to the logger. GPS data is shown on the map.
- View auxiliary data from the EM sensor such as battery level, tilt and rotation angles and temperature. 
- Resume incomplete surveys
- Use the terminal to modify internal EM sensor configuration settings
- Modify the logger configuration settings such as sensor baud rates, device name, WiFi security
- Download previous surveys from the logger to the app. Downloaded surveys can reviewed in app and then emailed as an attachment

## Key features

- Connect to Geosensors Logger via WiFi
- Monitor live EM and GPS data
- View sensor auxiliary data
- Resume incomplete surveys
- Modify sensor and logger configurations
- Download and email survey data


## Frequently asked questions about Geosensors

### What is Geosensors used for?

Geosensors is a geophysical surveying tool that works with the Geosensors Logger hardware. It allows users to monitor live sensor data, set up and record surveys, and transfer data for further processing.

### Does Geosensors require specific hardware?

Yes, to get the best use out of Geosensors, it must be connected to a Geosensors Logger hardware. This logger connects to an electromagnetic sensor and an external GPS device.

### How does Geosensors connect to the logger?

The application connects to the Geosensors Logger via WiFi. This connection allows for real-time monitoring and data transfer.

### What kind of data can I view in Geosensors?

You can view live electromagnetic (EM) and GPS data as it's recorded. The app also displays auxiliary EM sensor data like battery level, tilt, rotation angles, and temperature.

### Can I modify settings with Geosensors?

Yes, you can use the terminal within Geosensors to modify internal EM sensor configuration settings. You can also modify logger configuration settings such as baud rates, device name, and WiFi security.

### How is survey data handled in Geosensors?

Completed survey data can be transferred to the app. You can then review summary details and email the data as an attachment for further processing on a desktop computer.

### What devices is Geosensors compatible with?

Geosensors is supported on iPhone, iPad, and iPod devices. It is rated for ages 4 and up.

### When was Geosensors last updated?

The latest version of Geosensors was released on February 19, 2020. The app was initially released on August 26, 2018.

## Version history (last 5 releases)

### 1.2.2 — 2020-02-19

Added support for multi-channel instruments
Added support for sampling GPS and EM at different rates

### 1.2.1 — 2019-10-22

Minor update - fixed an issue that prevented distance and speed units from using the regional settings of the device

### 1.2.0 — 2019-10-09

Finally, Geosensors is iOS 13 ready! 

Other minor improvements include better tracking of pauses, improved method of generating export formats and support for dark mode.

### 1.1.6 — 2019-04-11

Bug fix release:
* Fixed a bug that could crash the app if it tried to connect to a logger running older firmware
* Made improvements to the LOG and XYZ output formats

### 1.1.4 — 2019-04-05

Added new export formats:
 - LOG format
 - XYZ format

Over-the-air firmware updates available for support loggers

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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 2026-07-08.*