Download of Free42-Decimal 1.4.74 for Mac was on the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The application lies within Productivity Tools, more precisely Calculators. The most popular version of the software is 1.4. We recommend checking the downloaded files with any free antivirus. This free Mac application is an intellectual property of Thomas Okken.
From the developer:
Free42 is a re-implementation of the HP-42S calculator and the HP-82240 printer.
It is a complete rewrite, not using any HP code, and it does not require an HP-42S ROM image.
You may want to check out more Mac applications, such as Free42 Decimal, which might be similar to Free42-Decimal.