$0.99
![RPN-70 SD](https://is1-ssl.mzstatic.com/image/thumb/Purple112/v4/32/e0/84/32e08461-9dad-2d63-4f7a-9e868b7db5c7/AppIcon-0-0-1x_U007emarketing-0-0-0-6-0-0-sRGB-0-0-0-GLES2_U002c0-512MB-85-220-0-0.png/100x0w.png)
RPN-70 SD
Very rare vintage calculator
⭐️4.7 / 5
Rating
🙌11
Ratings
📼4 scs
Content
📦w/o updates
Updates frequency
🗣❌ unsupported
Your locale
- Versions
- Price History
- Description
- FAQ
All Versions of RPN
3.1.5
September 22, 2022
Compatibility with iPhone 14 Pro
3.1.1
November 5, 2020
Compatibility with iPhone 12
3.1
April 1, 2020
• Key flashing may be turned off and on:
- Store 19390101 in R1 to turn off
- Recall 19390101 from R1 to turn on
(Hewlett-Packard Company was founded an Jan 1, 1939)
Bug Fix:
• Using scientific notation could crash the app in some regions, e.g. Australia, Sweden, Slovenia.
More3.0
January 24, 2020
• iOS 13 compatibility
• Dismiss register view by dragging view down (iOS 13)
RPN-70 SD now requires iOS 11 or later.
More2.7
January 10, 2019
• In register view, selected input parameters (n,i,PMT,PV,FV) are now colored green
• Changed "Undo digit" sound to same as found on other CuVee calculators
• Many under-the-hood refinements
More2.6
May 4, 2017
• Entering very large numbers automatically shows exponent
2.5
October 2, 2016
This update requires iOS 8 or later.
• Calculator sounds mix with background audio and have their own volume control
Bug Fix:
• Fixed a possible crash on startup
More2.4
July 27, 2016
• Decimal addition/subtraction for higher precision
2.3
July 5, 2016
• Key-click volume is now stored in settings
Bug Fix:
• Fixed display formatting not corresponding to real HP-70 in certain cases
More2.2
September 2, 2015
• If audio is playing on start-up, RPN-70 SD will not produce any sounds
MorePrice History of RPN
Description of RPN
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
Show less
RPN: FAQ
No, the RPN software is not iPad-compatible.
The RPN app was developed by Willy Kunz.
The minimum supported iOS version for the app is 11.0.
4.7 out of 5 is the fantastic rating that RPN has received from users.
The App Category Of Rpn Is Productivity.
3.1.5 is the most recent version of RPN.
RPN updated on June 30, 2024.
The specific date when the app came out was February 5, 2023.
No objectionable content, suitable for young children.
Currently, RPN supports English, German.
No, RPN is not on Apple Arcade.
No, RPN does not support in-app purchases.
Sorry, RPN is not designed for integration with Apple Vision Pro.