free42-binary ☆

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Description:
HP-42S calculator simulator

Type: Cask | Latest Version: 3.3.11@0 | Tracked Since: Dec 17, 2025

Links: Homepage | formulae.brew.sh

Category: Productivity

Tags: calculator scientific rpn simulation mathematics

Install: brew install --cask free42-binary

About:
Free42 is a complete re-implementation of the highly programmable HP-42S RPN scientific calculator. It provides a highly accurate simulation of the original hardware, including its high-resolution display and powerful instruction set. The binary version offers native performance and seamless integration with modern macOS systems.

Key Features:

100% compatible with HP-42S software
High-resolution display support
Support for HP-41C-style functions
Binary execution for native performance

Use Cases:

Scientific and engineering calculations
Legacy calculator software development
Educational tool for RPN programming

Alternatives:

free42-source – Source distribution requiring compilation, while binary offers out-of-the-box execution
hp48-emulators – Emulates more powerful HP-48 series with different architecture and feature set

Version History

Detected	Version	Rev	Change	Commit
Jan 13, 2026 7:04pm	3.3.11	0	VERSION_BUMP	70c3f7c4
Sep 15, 2025 11:39am	3.3.8	0	VERSION_BUMP	b5553b5c