Site menu Touch RPN: the RPN calculator for iOS

Touch RPN: the RPN calculator for iOS

Touch RPN (formerly known as Touch Fin) is a financial and scientific calculator for iPhone. It implements most features of the industry-standard HP-12C calculator, including programming functions.

Figure 1: Touch RPN main screen, active flavor is Financial Premium

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Get it at App Store

The calculator mimics the real device as closely as practically possible, including details such as rounding up of n in financial calculations. It shares the same limitations of a real 12C: only 99 programming steps, 20 memory positions, etc.

To open the new Settings pane, press the ON button, then "Settings" at the right top corner, to access the preferences panel.

More about Settings
Clipboard, quick guide and layout
Calculator flavors
Using a hardware keyboard
Saving and sharing the memory
Problems with your purchase?
Privacy policy and terms of use


If you have further issues, or just want to send some suggestion or feedback, visit the users group on Facebook, comment at this page, or contact us by e-mail.