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Eos Tools Pro screenshot #1 for iPhone
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About

This utility app provides advanced GNSS information for high-precision receivers, crucial for GIS and surveying. It includes an NTRIP client for corrections, user-configurable alarms, and background operation with mapping software.

Advanced GNSS information (RMS, PDOP, differential status)
Built-in NTRIP client for RTK/DGNSS corrections
User-configurable audible alarms
Background operation with mapping software
Satellite view for multiple constellations
Orthometric Height and Position Shift computation
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What's New in Eos Tools Pro

4.7.1

June 1, 2026

Resolved an issue where Field Maps did not always launch automatically after opening Eos Tools Pro.

User reviews

iPhone 14 semplicemente non si apre

Se si aprisse dalle schermate sembrerebbe quello che serve ma…Non si apre

Hard To See Text With New Interface

Updated to 4.4.22 on an iPad mini and the app is okay. Gave it 3 stars since now since the designer moved to make the font smaller, lighter, and with no bold style utilized. Now, everything is harder to see when indoors and nearly impossible outdoors. Hoping a future update will have the option to increase the font for us older men.
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Doesn’t work

Splash screen with message “looking for authorised connected devices..” never goes away.

Dynamic Island Display Issues

For its purpose, it’s a great app. Only issue is that on an iPhone with the Dynamic Island the icons on the very top right (settings, info and rotation) are unusable. They’re under the phone cell signal strength & battery indicators & they’re unresponsive to touch.

App color scheme update is not for the better.

The new gray background with white letters is not user friendly at all, the contrast is so limited that’s all but impossible to read in sunlight conditions. Please fix it back to the old way, it’s pretty but unusable in the field.

Response from developer

Thank you for your feedback. Dark Mode is currently not supported with Eos Tools Pro v1.88 (build 401). The workaround will be to enable Light Mode in the iOS Settings under Display & Brightness. We are adding this feedback in our list for a future release. Eos Technical Team.

FAQ

What GNSS information does Eos Tools Pro provide?

Eos Tools Pro displays critical GNSS data such as RMS values, PDOP, differential status, and the number of satellites tracked and used. This information is vital for achieving submeter and centimeter accuracy in GIS and surveying.

Can Eos Tools Pro connect to RTK networks?

Yes, Eos Tools Pro features a built-in NTRIP client that allows users to access RTK or DGNSS corrections directly from an RTK network. This enhances the precision of location data collected.

Does Eos Tools Pro offer customizable alerts?

Eos Tools Pro allows for user-configurable audible alarms. These alarms can be set to notify users of specific GNSS conditions or changes, ensuring critical data quality is maintained.

Is Eos Tools Pro compatible with other mapping software?

Yes, Eos Tools Pro is designed to run in the background of your mapping and surveying software. This allows for continuous monitoring while you are actively collecting data with other applications.

What constellations does Eos Tools Pro support?

Eos Tools Pro provides a satellite view for all constellations in use, including GPS, GLONASS, BeiDou, QZSS, and IRNSS. This comprehensive view helps in understanding satellite availability and signal quality.

Does Eos Tools Pro have ads?

No, Eos Tools Pro does not contain advertisements. The application is completely ad-free, providing an uninterrupted user experience.

What is the battery impact of using Eos Tools Pro?

Continued use of Eos Tools Pro running in the background and connected to a GNSS receiver can significantly decrease your device's battery life. Users should be mindful of this when operating the app for extended periods.

How often is Eos Tools Pro updated?

The latest version of Eos Tools Pro is 4.6.3, last updated on March 16, 2026. This indicates a history of regular updates and ongoing development by the developer.