Comparison

Eos Tools Pro vs Catalis GIS

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read 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.

About

Catalis GIS

Features
Read 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

Eos Tools Pro4 screens
Catalis GIS3 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

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.

Scorecard1 real difference · 9 level
Eos Tools Pro versus Catalis GIS: the parameters behind the verdict, then further details
ParameterEos Tools ProCatalis GIS
PriceFreeFree
Rating4.6 (9 ratings) — better—
Positive reviews37.5% of reviews—
Number of ratings9 — better—
Update frequencyEvery 2 monthsWeekly — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS17.016.4 — better
Further details — not scored
Size36 MB60 MB
Age rating17+4+
DeveloperEos Positioning SystemsCatalis, LLC

In-app purchases

None

Eos Tools Pro

No in-app purchases

None

Catalis GIS

No in-app purchases

Questions

Is Eos Tools Pro free?
Eos Tools Pro is free to download, with no in-app purchases.
Is Catalis GIS free?
Catalis GIS is free to download, with no in-app purchases.
Do Eos Tools Pro or Catalis GIS have ads?
Neither Eos Tools Pro nor Catalis GIS shows ads.
Which is updated more often, Eos Tools Pro or Catalis GIS?
Eos Tools Pro ships an update every 2 months, and Catalis GIS weekly. Most recently, Eos Tools Pro was updated on September 18, 2026 and Catalis GIS on September 14, 2026.

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