Is There an App?
PCalc
by TLA Systems Ltd.
Perform scientific and engineering calculations with optional RPN input.
What it does
Perform scientific and engineering calculations with optional RPN input. Includes unit conversions, constants, history and alternative number bases.
Pricing: is PCalc free?
US App Store download: $9.99 (USD), checked 2026-09-23. The app has an upfront download price. Extra purchases or separate device editions may apply.
Screenshots
Developer-provided iOS screenshots.
Features
RPN and multi-line modes
Choose an optional reverse-Polish-notation mode and a multi-line display.
Developer’s App Store feature description (iOS)Configurable button layouts
Choose among different calculator button arrangements.
Developer’s App Store feature description (iOS)Units and constants
Use an extensive collection of unit conversions and constants.
Developer’s App Store feature description (iOS)Paper tape and undo history
Review calculations on a paper tape and use multiple undo and redo steps.
Developer’s App Store feature description (iOS)Programmer number bases
Perform hexadecimal, octal, and binary calculations in addition to engineering and scientific notation.
Developer’s App Store feature description (iOS)Sources & verification
- PCalc: developer's App Store listing (US)Primary source
- Developer’s App Store feature description (iOS)Primary source
Last verified: 23 September 2026. Features not listed here may be unverified.
Are you the developer? Claim this listing →