PCalc
PCalc is a long-running scientific calculator for macOS with advanced math, unit conversion, customization, and optional syncing features.
What is PCalc?
PCalc is a scientific and programmable calculator app for macOS published by TLA Systems. It is designed for everyday calculations as well as more technical work, with support for scientific functions, hexadecimal, octal, and binary math, parentheses, bitwise operations, and an optional RPN mode. The Mac version also includes a menu bar calculator, a paper tape-style history view, customizable layouts and themes, and scripting support through AppleScript and Shortcuts. Users may encounter it as a paid calculator app installed from the Mac App Store, and some older licensed versions also existed outside the store. PCalc can optionally sync user-created functions, constants, conversions, and layouts through iCloud, and it can contact the developer site for currency exchange rate updates when that feature is enabled. For most users, it is a legitimate utility app rather than a background component or system item.
Key features
- Performs scientific, engineering, and general-purpose calculations
- Supports hexadecimal, octal, binary, and bitwise operations
- Includes an optional RPN mode for stack-based calculation
- Provides unit and currency conversions
- Offers a menu bar calculator for quick calculations
- Keeps a paper tape-style history of calculations
- Supports custom layouts, themes, functions, and constants
- Works with AppleScript and Shortcuts for automation
Review app leftovers with diCleaner
Inspect caches, support files, containers, and login items before cleaning.
Safety overview
Status: Safe
This is a legitimate calculator application for macOS. It is generally low risk, but like many apps it may store preferences, saved layouts, and synced data. Network access is limited in normal use, though features such as currency updates and optional iCloud syncing can transmit data needed for those functions.
Recommendation: Keep it if you use it or want an advanced calculator on your Mac. If you do not use it, removing the app is usually fine, and any leftover support files can be reviewed separately.
Common paths
/Applications/PCalc.app
Preference paths
~/Library/Preferences/uk.co.tla-systems.pcalc.plist
Container paths
~/Library/Containers/uk.co.tla-systems.pcalc
Share your experience
Be the first to share your experience.