Comparison

Eos Tools Pro vs iCMTGIS III

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

iCMTGIS III

Features
Read full description

iCMTGIS III is a professional GPS/GIS mapping app that will let you record Points, Lines and Area Features with date/time stamp and pre-defined or manually added descriptions. You could also digitize Features on top of a background map or create points by entering angles and distances. LLA, UTM, State Plane and local coordinate systems supported.You could record your track while performing other tasks using this app. View distances and areas on the spot. Stakeout to points or along a Line or Area Feature. Easily import/export Shapefiles, send/receive files via ftp or email, and store files in the Cloud. Effectively collect data and increase productivity for utilities, natural resources, land management, archeology and other GPS/GIS applications. Please note: Location data depends on the GPS receiver used. Continued use of GPS running in the background can dramatically decrease battery life. iCMTGIS III will let you easily toggle the built-in GPS on or off. This app comes with a built-in help file. Requires iOS 9 or newer version of iOS. iCMTGIS III provides the following enhancements over the iCMTGIS II GPS/GIS Data Collection app. 1. Ability to load geo-referenced .tif file as off-line background image for GPS mapping 2.Ability to enter Antenna Height and specify incoming GPS datum for RTK data collection 3. Distance mode for offset GPS data collection 4. Classify Features on a Topic layer 5. Export Shapefiles into a folder; import Shapefiles from a folder 6. Import/Export Feature data in Excel, DXF, KML formats 7. Export Feature data to GPX 8. Import/Export Text Files (with fixed-length field option) for Point Topics 9. Photo support 10. Point Stakeout and Line Stakeout functions. 11. Insert node or Delete node to modify a Line or Area 12. Join or Disconnect Line/Area 13. Nested Point defaults to last used Point Topic. 14. New Feature List format with symbol/pattern support 15. Ability to add built-in Attributes for a Topic 16. Sort/Search/Batch Delete Features and view statistics 17. Create deed plot by entering Deed Calls 18. Export to PDF

Screenshots

Eos Tools Pro4 screens
iCMTGIS III4 screens

Verdict

The call

The clearest difference is price: Eos Tools Pro at Free against iCMTGIS III's $199.99. iCMTGIS III's advantage is iOS requirement (9.0 vs 17.0). On update cadence, 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

Eos Tools Pro is free to download; iCMTGIS III costs $199.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Eos Tools Pro ships an update every 2 months, iCMTGIS III every 3 months. The most recent releases landed on October 6, 2026 and October 19, 2026 respectively.

Scorecard2 real differences · 8 level
Eos Tools Pro versus iCMTGIS III: the parameters behind the verdict, then further details
ParameterEos Tools ProiCMTGIS III
PriceFree — better$199.99
Rating4.6 (9 ratings) — better—
Positive reviews37.5% of reviews—
Number of ratings9 — better—
Update frequencyEvery 2 months — betterEvery 3 months
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.09.0 — better
Further details — not scored
Size36 MB14 MB
Age rating17+4+
DeveloperEos Positioning SystemsCORVALLIS MICROTECHNOLOGY, INC.

In-app purchases

None

Eos Tools Pro

No in-app purchases

None

iCMTGIS III

No in-app purchases

Questions

Is Eos Tools Pro free?
Eos Tools Pro is free to download, with no in-app purchases.
Is iCMTGIS III free?
iCMTGIS III costs $199.99, with no in-app purchases.
Do Eos Tools Pro or iCMTGIS III have ads?
Neither Eos Tools Pro nor iCMTGIS III shows ads.
Which is updated more often, Eos Tools Pro or iCMTGIS III?
Eos Tools Pro ships an update every 2 months, and iCMTGIS III every 3 months. Most recently, Eos Tools Pro was updated on October 6, 2026 and iCMTGIS III on October 19, 2026.

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