Eos Tools Pro vs Catalis GIS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Eos Tools Pro
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
Read full descriptionHide full description
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.
Catalis GIS
Read full descriptionHide full description
Access your Catalis WebMap information on the move using Catalis GIS. View and collect data in real-time using your device’s GPS location, increasing efficiency of field data collection. Features: View your integrated Catalis Webmap information Collection point, line and polygon features using the map or GPS Form driven data collection Attach photos to features from your device
Screenshots
Verdict
The clearest difference is update cadence: Catalis GIS at weekly against Eos Tools Pro's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Eos Tools Pro ships an update every 2 months, Catalis GIS weekly. The most recent releases landed on September 18, 2026 and September 14, 2026 respectively.
| Parameter | Eos Tools Pro | Catalis GIS |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (9 ratings) — better | — |
| Positive reviews | 37.5% of reviews | — |
| Number of ratings | 9 — better | — |
| Update frequency | Every 2 months | Weekly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | — |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.0 | 16.4 — better |
| Further details — not scored | ||
| Size | 36 MB | 60 MB |
| Age rating | 17+ | 4+ |
| Developer | Eos Positioning Systems | Catalis, LLC |
In-app purchases
Eos Tools Pro
No in-app purchases
Catalis GIS
No in-app purchases









