Download of HP-11c Calculator 3.1 for Mac was available from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The most popular version of the tool is 3.1. The unique ID for this app's bundle is org.gnu.nonpareil_11c.
The software lies within Productivity Tools, more precisely Calculators. The actual developer of this software for Mac is RLM Software. According to the results of the Google Safe Browsing check, the developer's site is safe. Despite this, we recommend checking the downloaded files with any free antivirus software. The application's installer is commonly called hp11c-v3.1.zip.
From the developer:
Fully operational 11c Scientific calculator simulation with all the functions and capabilities of the real one. Available for Mac OSX & Windows PC. Realistic "Look and Feel", elegant interface and unique features:
Expanded to 100 registers & 1000 program lines.
Localized number formats.
Interface engraving option.
Variable size up to full screen or larger.
You may want to check out more Mac applications, such as Calculator +, Calculator PRO or Calculator LCD, which might be similar to HP-11c Calculator.