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PCalcJRPN 15C
Paid

Paid app, sold separately for Mac and for iOS devices.

 Free

Free of charge.

macOS, iOS Windows, macOS, Linux, Android, iOS, Web
  • RPN mode alongside standard entry with parentheses
  • Hexadecimal, octal and binary calculations
  • Aims to match the HP 15C's appearance and behavior
  • Runs in a browser and on several desktop and mobile platforms
  • Apple platforms only
  • Paid, with Mac and iOS versions bought separately
  • The web version is described as less well supported than desktop and mobile
Downloadable app Downloadable app, Web application
Closed source Open source
License not stated License: GPL-3.0-only
Not stated if an account is needed Not stated if an account is needed
Not stated if it works offline Not stated if it works offline

Checked September 23, 2026

Checked October 8, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.