Land Surveying +
Civil Engineering
Software for
HP Calculators

Simple Geospatial Solutions provides land surveying and civil engineering software solutions for the HP 48gii, 49g, 49g+ and 50g graphing calculators.

COGO+ handles everything from COGO to least squares coordinate transformations, 3D road alignments, geodetic/grid conversions, ASCII file import and export, and much more.

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Latest News

  • March 4, 2012 - Version 3.13 of COGO+ is released, see the release notes for details.
  • February 26, 2012 - Version 3.12 of COGO+ is released, see the release notes for details. Chapter 6 of the manual has been added to the Support page, and more content has been added to this website.
  • January 4, 2012 - Version 3.11 of COGO+ Pro is released.
  • December 31, 2011 - Version 3.10 of COGO+ is released.
  • November 27, 2011 - Version 3.09 of COGO+ is released.

Older News

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  • September 7, 2011 - Version 3.07 of COGO+ is released. Chapter 5 of the manual has been added to the Support page.
  • July 20, 2011 - Version 3.06 of COGO+ is released.
  • June 16, 2011 - Version 3.05 of COGO+ is released.
  • June 7, 2011 - Chapter 1 of the manual has been updated to include installation and upgrade instructions for all editions of COGO+.
  • May 23, 2011 - Version 3.03 of all three editions (Professional, Standard and Lite) of COGO+ are now available for download and purchase. See the Comparison Table to compare the different editions of the software.
  • May 15, 2011 - COGOPLUS.exe and COGOPLUS.zip have both been updated to Version 3.02. This update improves Codelist creation and usage, adds ability to solve vertical curve elevations for stations on tangents outside of curve, adds ability to copy points from the job database to convert from grid to geodetic, and minor tweaks and bug fixes. Chapters 3 and 4 of the manual are now available on the Support page.
  • May 1, 2011 - Chapters 1 and 2 of the manual for COGO+ Version 3 are now available on the Support page.
  • April 26, 2011 - COGOPLUS.exe and COGOPLUS.zip have both been updated to Version 3.01. This update corrects a few memory related issues. The current edition of the software has been labeled "Pro" in preparation for additional editions in the future.
  • April 16, 2011 - Release Notes updated to clarify the new primary distance unit setting.
  • April 14, 2011 - Version 3.0 of COGO+ is released, please read the Release Notes for details and installation/upgrade information.

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