RPN-70 HD 3.2

CuVee Software – Freeware – iOS
out of 3 votes

RPN-70 HD: Powerful Calculator with a Modern Twist

Pete Milner

03/13/2025

RPN-70 HD combines classic RPN functionality with a sleek, modern interface, making complex calculations intuitive and accessible to all users.

The RPN-70 HD serves as a comprehensive and photo-realistic simulation of the HP-70 financial calculator, a classic model from 1974. It adeptly manages functions such as loan amortization, savings plans, depreciation, and more, ensuring usability for a range of finance-related tasks.

User feedback has been largely positive:

"It's challenging to find a decent calculator on iPad; I recommend trying this one."
"I typically don’t write reviews, but RPN-70 has truly impressed me. Apple should categorize this app under Education in the App Store; it’s essential for any college-bound student. It stands out as the best HP emulator available."
"An exceptionally well-engineered calculator app, and it's free!"
"This is an outstanding financial calculator that closely mirrors the original HP-70, providing accuracy down to the penny."

Key features include:

Photo-realistic aesthetics based on the original device
"Live" register view when in landscape mode
Animated keys accompanied by adjustable click sounds
Comprehensive implementation of all HP-70 functions and operations
Optional simulation of the HP-70’s computation time
Ability to correct erroneous entries by swiping left across the display
Cut, copy, and paste functionality for display values
Visual indicators for tracking stored input parameters (optional)
Display of stack just below the main display (optional)
Ten non-volatile memory registers (optional)
A built-in manual featuring numerous examples

The HP-70 was discontinued within a year of its release, making it one of the rarest calculators now difficult to locate in any condition.

Note: The RPN-70 HD accurately simulates the vintage HP-70, verified against an actual device using examples from the HP-70 manual's Applications Cookbook section. Occasionally, what may seem like an app bug could be an inherent quirk of the original HP-70 device.

Important: The HP-70 requires precisely three input parameters from the top-row keys, with at least one being either "n" or "i". Therefore, using PMT, PV, and FV as input parameters simultaneously is not permissible.

A version for the iPhone known as "RPN-70 SD" is also available.

For more information, visit: www.cuveesoft.ch

Overview

RPN-70 HD is a Freeware software in the category Business developed by CuVee Software.

The latest version of RPN-70 HD is 3.2, released on 01/01/2025. It was initially added to our database on 01/01/2025.

RPN-70 HD runs on the following operating systems: iOS.

Users of RPN-70 HD gave it a rating of 5 out of 5 stars.

Pete Milner

I'm Pete, a software reviewer at UpdateStar with a passion for the ever-evolving world of technology. My background in engineering gives me a unique insight into the intricacies of software, allowing me to provide in-depth, knowledgeable reviews and analyses. Whether it's the newest software releases, tech innovations, or the latest trends, I'm here to break it all down for you. I work from UpdateStar’s Berlin main office.

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Latest Version
3.2

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