PCalc
PCalc is a scientific calculator for macOS that helps you handle everyday, technical, and programmable calculations with conversions and advanced modes.
What is PCalc?
PCalc is a native macOS scientific calculator designed for users who need more than a basic desktop calculator. It helps with everyday arithmetic, engineering and science work, unit conversions, and number-base calculations in hexadecimal, octal, and binary. The app includes an optional RPN mode, programmable functions, editable constants and conversions, and a paper tape view for reviewing previous steps. It also offers a menu bar calculator for quick calculations without switching away from your current app, plus customizable layouts and themes to match different workflows. PCalc supports AppleScript and Shortcuts automation, and it can sync user-created functions, constants, and layouts across Apple devices. It is published by TLA Systems and available for Mac users who want a flexible calculator for study, technical work, and daily productivity.
Key features
- Perform scientific calculations with standard, programmable, and RPN workflows.
- Convert between units and search conversions, functions, and constants quickly.
- Work in hexadecimal, octal, and binary with bitwise operators.
- Use a menu bar calculator for quick calculations from any app.
- Customize button layouts, themes, and calculator arrangements.
- Review previous entries with a simulated paper tape display.
- Automate calculations with AppleScript and Shortcuts support.
- Sync user functions, constants, conversions, and layouts across Apple devices.
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Safety overview
Status: Safe
PCalc is a well-established calculator app for macOS, and its normal behavior is consistent with that purpose. Features such as iCloud syncing, AppleScript, and Shortcuts integration can exchange data you choose to create or automate, so review those settings if you use the app for sensitive calculations or custom workflows.
Recommendation: Keep PCalc if you use it for scientific, technical, or customizable calculations on your Mac. If you no longer use its advanced features, removing it should only affect your saved calculator settings, custom functions, and related local data.
Common paths
/Applications/PCalc.app
Support paths
~/Library/Application Support/PCalc
Preference paths
~/Library/Preferences/uk.co.tla-systems.pcalc.plist
Container paths
~/Library/Containers/uk.co.tla-systems.pcalc
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