Calccis is a simple reverse polish notation (RPN) calculator app for iOS. It supports basic arithmetic, trigonometrical, logarithm and exponent calculations with real, fractional, and complex numbers. Degrees and radians can be used for trigonometrical functions.
Calccis uses double-precision floating-point numbers for calculations, which makes small inaccuracies in calculation results quite common (e.g., 0.1 + 0.2 != 0.3).
Calccis does not copy or mimic any existing physical calculators. However, the operation of the stack has been influenced by the 1990s Hewlett-Packard HP-48 family of calculators.
The source code of Calccis is available in a Git repository at https://github.com/jaittola/calculatrice. If you encounter problems with the application, please file an issue at https://github.com/jaittola/calculatrice/issues.
This policy applies to the Calccis iOS application and to this website.
The Calccis iOS application does not have any analytics functionality. It does not collect any information about its users. It does not collect location information, either.
This website does not collect any information about its users. However, this website is hosted on Github pages, which probably collects some information about all visits. For details, refer to the documentation of Github Pages.
For more information about this application and the privacy policy, please contact the author at jaittola(at)iki.fi.
This privacy policy was last updated on Fri March 28th, 2025. We reserve the right to update or amend this privacy policy as needed.