RPN-38 CX logo

RPN-38 CX for iOS

By CuVee Software $1.99

Developer's Description

RPN-38 CX is the first photo-realistic simulation of Hewlett-Packard's popular high-end programmable business calculator HP-38C for the iPhone. Produced from 1979 through 1983, it was the "Chive" member of the third-generation HP calculators known as the "Spice" series.

While the simulator works like the original calculator, a number of carefully designed extensions make it a lot easier to use.

RPN-38 CX is fully compatible with the HP-12C, except for calculations and programs involving Bonds and Depreciation.


Photo-realistic look-and-feel

Programmable (99 steps, program memory not shared with register memory)

Subroutines, flags, loop control, extended conditional branching

Insert and delete steps with automatic address correction

20 registers, "continuous", with unlimited store/recall arithmetic

Indirect register addressing

Register view

Program listing view

Program library view

Additional functions (nominal and effective interest rate)

Shortcuts for often-used key combinations

Store and retrieve any number of programs

Sharing: e-mail, AirDrop, Dropbox, copy, paste, print

More than 40 programs pre-installed

Calculator functions:

Percentage (%, %, %Total)

Simple and Compound Interest

Optional odd periods

Nominal/Effective interest rate conversion


Discounted Cash Flow Analysis

Net Present Value, Internal Rate of Return

Date and Calendar (actual or 30/360 day basis)

Statistics (mean, weighted mean, standard deviation)

Linear Regression

Additional functions not found on the HP-38:

- Subroutines, flags, loop control, random number, Pi, Log, x and more

Details: cuveesoft.ch/rpn38

Full Specifications

What's new in version 2.8


Release December 2, 2019
Date Added December 2, 2019
Version 2.8

Operating Systems

Operating Systems iOS
Additional Requirements Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.


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