RPN-70 SD

Name: RPN-70 SD
Rating: 4.7 (11 reviews)
Author: CuVee Software

Very rare vintage calculator

Only for iPhone

Free · Designed for iPhone

11 Ratings
Age Rating

4+
Years
Category

Productivity
Developer

CuVee Software
Language

EN
+ 1 More
Size

18
MB

iPhone

RPN-70 SD is a complete simulation of the financial hand-held calculator HP-70 from 1974. It handles loan amortization, saving plans, depreciation, and much more with ease. What users said: "Looks good, all functions you need. Love it!" "This is a beautiful emulation of a very rare HP financial calculator from 1974. Works just like the original but better! Faster, more accurate, with 10 more storage registers, and a popup window lets you see the contents of each stack, financial and storage register. Provides TVM4 functionality for compound interest as well as accumulated simple interest. A true work of art!" Features: • Photo-realistic look based on an existing device • Animated keys with click sound (adjustable volume) • All functions and operations of the HP-70 fully implemented • Correct wrong number entries by swiping across the display • Cut/copy/paste of display value • Double-tap display to view the stack and memory registers • Visual indicators keep track of input parameters entered • 10 non-volatile memory registers (not available in original HP-70) The HP-70 was discontinued after just one year. It is one of the rarest calculators, hard to find in any condition. NOTE: RPN-70 SD is a faithful simulation of a vintage HP-70 calculator, as has been verified against a real device using the examples in the Applications Cookbook section of the HP-70 manual. In certain cases, what may appear like a bug of the app is actually an idiosyncrasy of the HP-70. IMPORTANT: The HP-70 requires exactly three input parameters from the top-row keys, at least one of them being either "n" or "i". In other words, you can't use PMT, PV, and FV as input parameters simultaneously. A version for the iPhone named "RPN-70 HD" is also available. Short manual and sample calculations on the website: www.cuveesoft.ch

Ratings & Reviews

4.7

out of 5

11 Ratings

A Perfect Calculator App
01/24/2019
Iowa_Florence
Perfect RPN App for my needs. Simple interface, but has enough basic financial functions to meet my needs. True to the original. Love the extra memory !
A Perfect Calculator App
01/24/2019
Iowa_Florence

Perfect RPN App for my needs. Simple interface, but has enough basic financial functions to meet my needs. True to the original. Love the extra memory !
A Very Useful and Classic Tool
05/31/2021
ColtAuto7
Many sincere thanks to the development team.
A Very Useful and Classic Tool
05/31/2021
ColtAuto7

Many sincere thanks to the development team.
Amazing! Perfect emulation of a classic calculator
03/02/2019
DaveB1958
I have several Cuveesoft calculators and all are excellent. I use the RPN-70 SD for personal finance.
Amazing! Perfect emulation of a classic calculator
03/02/2019
DaveB1958

I have several Cuveesoft calculators and all are excellent. I use the RPN-70 SD for personal finance.
5318008
10/31/2021
alexg1029
55378008
5318008
10/31/2021
alexg1029

55378008

• Improved compatibility with iPhone Air and iOS 26.

Version 3.4.1 10/17/2025

Data Not Collected

The developer does not collect any data from this app.

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Accessibility

Information

Seller: Willy Kunz
Size: 18 MB
Category: Productivity
Compatibility: Requires iOS 12.0 or later.

iPhone
Requires iOS 12.0 or later.

iPod touch
Requires iOS 12.0 or later.

Mac
Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.

Apple Vision
Requires visionOS 1.0 or later.
Languages: English and German
Age Rating: 4+

4+

Learn More