# Eos Tools Pro > GNSS monitoring utility for high-precision receivers, offering advanced accuracy data and correction services. (iPhone/iPad app by Eos Positioning Systems.) - Source: https://appshunter.io/ios/app/eos-tools-pro/id961459993 (this page in markdown: same URL + `.md`) - Developer: [Eos Positioning Systems](https://appshunter.io/developer/945012224) - Category: Navigation, Productivity - Price: Free - Rating: 4.60/5 from 9 App Store ratings · 8 written reviews indexed - Age rating: 17+ - Requires: iOS 17.0 · 36 MB - Languages: American English, French (France), European Spanish - Released: 2015-03-18 - Data updated: 2026-08-22 - Monetization: free - User reviews in markdown: https://appshunter.io/ios/app/eos-tools-pro/id961459993/reviews.md ## What is Eos Tools Pro? Eos Tools Pro is a monitoring utility for the Arrow and Skadi series high precision GNSS receivers from Eos Positioning Systems. It provides advanced GNSS information such as RMS values, PDOP, differential status, satellites tracked and used, that are critical for submeter and centimeter GIS and surveying data collection. The app features a built-in end trip client to access RTK or DGNSS corrections from an RTK network. Eos Tools Pro also allows audible user configurable alarms and runs in the background of your mapping surveying software. Features: - Built-in NTRIP client to connect to an RTK Network - Displays GNSS and Tilt Compensation accuracy with quality control information - Select the Skadi Smart Handle mode: Extensible Virtual Range Pole™ or Invisible Range Pole™ - Satellite view for all constellations in use (GPS, GLONASS, BeiDou, QZSS and IRNSS) - User configurable alarms - Orthometric Height (Geoid models for vertical datum) - Compute and apply Position Shifts to accommodate different - Laser Offset Mapping for Esri ArcGIS® Field Maps - Locate and map underground utility assets directly in ArcGIS Field Maps - Terminal emulator to send configuration commands to the receiver - HTML5 built-in browser Disclaimer: "Continued use of Eos Tools Pro running in the background and connected to the GPS/GNSS receiver can dramatically decrease the battery life of your Apple device." Technical Support: For technical support, questions, feedback or bug reporting, please contact support@eos-gnss.com. ## Key features - 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 ## Recent user reviews (8 of 8) All indexed reviews: https://appshunter.io/ios/app/eos-tools-pro/id961459993/reviews.md ### 1/5 — iPhone 14 semplicemente non si apre *2025-10-25, version 4.5.0* Se si aprisse dalle schermate sembrerebbe quello che serve ma…Non si apre ### 3/5 — Hard To See Text With New Interface *2025-07-17* 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. ### 1/5 — Doesn’t work *2024-04-26* Splash screen with message “looking for authorised connected devices..” never goes away. ### 4/5 — Dynamic Island Display Issues *2023-02-23* 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. ### 4/5 — App color scheme update is not for the better. *2020-06-26* 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. **Developer response:** 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. ### 1/5 — Semplicemente non funziona *2019-10-05, version 1.78* Rimane impallato sulla prima schermata ### 1/5 — Semplicemente non funziona *2019-08-08, version 1.76* Non funziona! ### 5/5 — Great App! *2016-07-21* I definitely recommend EOS and the Arrow product line! Above Quality at a fraction of the cost of brands such as sokkia Leica etc... **Developer response:** Thank you phallel for your feedback. Eos Team. ## Frequently asked questions about Eos Tools Pro ### 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. ## Version history (last 5 releases) ### 4.8.0 — 2026-08-20 • Added Bookmarks to the Web tab, enabling users to save, manage, and quickly access frequently used URLs. • Improved the reliability of Latitude, Longitude, and Altitude value display. • Minor UI fixes and improvements. ### 4.7.1 — 2026-06-01 Resolved an issue where Field Maps did not always launch automatically after opening Eos Tools Pro. ### 4.7.0 — 2026-05-23 New: - Over-the-Air (OTA) Receiver Firmware Updates for Arrow Series - MDM Support for Skadi Tilt Compensation and Skadi Smart Handle - User Interface to Enter Activation Code for Skadi Tilt Compensation Enhancements: - New geoid models for Netherlands and Bermuda Bug Fixes: - Various bug fixes and improvements ### 4.6.3 — 2026-03-16 This update removes a new MDM configuration that will be included in a future major release. ### 4.6.2 — 2026-03-13 - Eos Laser Mapping™ for ArcGIS Eos Laser Mapping for ArcGIS now supports Esri’s new laser rangefinder fields created in Field Maps Designer in addition to the original Eos Laser metadata fields. - Eos Mobile Device Management (MDM) MDM for iOS now supports parameters for select Arrow Series receivers that invalidate position output to third‑party apps when orthometric height exceptions occur or when Eos Tools Pro is closed while Ntrip, orthometric height or datum shift are enabled. ## Apps similar to Eos Tools Pro | App | Rating | Price | Category | | --- | --- | --- | --- | | [GNSS View](https://appshunter.io/ios/app/gnss-view/id924350018) | 4.3 (20) | Free | Navigation | | [Global Mapper Mobile](https://appshunter.io/ios/app/global-mapper-mobile/id1097875766) | 3.6 (14) | Free | Navigation | | [Theodolite](https://appshunter.io/ios/app/theodolite/id339393884) | 4.7 (902) | $8.99 | Navigation | | [GPS Data Smart](https://appshunter.io/ios/app/gps-data-smart/id1076838348) | 4.7 (405) | Free | Navigation | | [ArcGIS Navigator](https://appshunter.io/ios/app/arcgis-navigator/id980973560) | 2.7 (18) | Free | Navigation | | [Trimble Mobile Manager](https://appshunter.io/ios/app/trimble-mobile-manager/id1477956695) | 1.9 (40) | Free | Navigation | ## Related topics [eos tools pro](https://appshunter.io/ios/topics/eos-tools-pro) · [gnss view](https://appshunter.io/ios/topics/gnss-view) · [skypro gps status tool](https://appshunter.io/ios/topics/skypro-gps-status-tool) · [juniper geode](https://appshunter.io/ios/topics/juniper-geode) · [crwa expo](https://appshunter.io/ios/topics/crwa-expo) · [gnss](https://appshunter.io/ios/topics/gnss) · [gnss analyzer](https://appshunter.io/ios/topics/gnss-analyzer) · [gimss](https://appshunter.io/ios/topics/gimss) · [gps signal strength](https://appshunter.io/ios/topics/gps-signal-strength) · [eos](https://appshunter.io/ios/topics/eos) · [gnss performance analyzer](https://appshunter.io/ios/topics/gnss-performance-analyzer) · [gnss monitor](https://appshunter.io/ios/topics/gnss-monitor) · [coplanar](https://appshunter.io/ios/topics/coplanar) · [eos app](https://appshunter.io/ios/topics/eos-app) · [geolocation system one](https://appshunter.io/ios/topics/geolocation-system-one) · [vestas siterec](https://appshunter.io/ios/topics/vestas-siterec) · [argis survey 123](https://appshunter.io/ios/topics/argis-survey-123) · [ntrip](https://appshunter.io/ios/topics/ntrip) · [system tools](https://appshunter.io/ios/topics/system-tools) · [gnss status](https://appshunter.io/ios/topics/gnss-status) --- *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 2026-08-22.*