by edgurr

"Outstanding!"

Best calculator available anywhere! Wish there was an iPhone version. If its not on the canned functions, write your own... More.

reviewed on December 20, 2013

by alansailor

"If you don't use it you are probably missing out."

It is the preferred calculator on anyone's computer. Once you have agreed to rethink calculator use to accept RPN you w... More.

reviewed on September 14, 2013

by philexcalibur

"must have for hp calc users"

excellent for those doing work on the computer and natually want their caclculator there not buried. I have it set to ho... More.

reviewed on April 11, 2012

by OlneyNate

"haven't found ANY issues with it in years of use"

For day-to-day calculations, this app should meet your every need. As developer Dave B notes in his help file, there ma... More.

reviewed on March 20, 2012

"Using the Excalibur "

I am a mechanical engineer and have been using Hewlett Packard programmable calculators over for over 40 years and as a ... More.

reviewed on May 1, 2011

by yehezkel

"Excellent free utility"

As a mathematician--an algebraist to be specific--I find RPN practically and philosophically superior to (and more algeb... More.

reviewed on August 15, 2010