free42-binary
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Description:
HP-42S calculator simulator
Type: Cask  |  Latest Version: 3.3.12@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
May 4, 2026 10:12pm 3.3.12 0 VERSION_BUMP 40f9b145
Jan 13, 2026 7:04pm 3.3.11 0 VERSION_BUMP 70c3f7c4
Sep 15, 2025 11:39am 3.3.8 0 VERSION_BUMP b5553b5c
Mar 30, 2024 9:33pm 3.1.7 0 VERSION_BUMP fc8ec595
Jan 17, 2024 8:35am 3.1.3 0 VERSION_BUMP 6a28c794
Dec 1, 2023 11:21am 3.1.2 0 VERSION_BUMP 8630863b
Nov 29, 2023 11:09am 3.1.1 0 VERSION_BUMP 5f8f9db1
Nov 15, 2023 2:02pm 3.1 0 VERSION_BUMP 44aaff9f
Apr 15, 2023 6:39am 3.0.19a 0 VERSION_BUMP b0951fc8
Apr 9, 2023 3:13pm 3.0.19 0 VERSION_BUMP 54a18a97
Mar 20, 2023 11:54am 3.0.18 0 VERSION_BUMP 254cf601