iPhone Screenshots


Vintage-45 is a complete simulation of Hewlett-Packard's scientific hand-held calculator HP-45 from 1973. Processing times and behavior have been carefully modelled after the original. Even the "secret" stopwatch may be activated.


• Photo-realistic look based on an existing device
• Animated keys with adjustable click sound and visual feedback
• All functions and operations of the HP-45 fully implemented
• Includes "secret" stopwatch
• Full-speed or simulated speed of real calculator
• Correct wrong number entries by swiping left across the display
• Cut/copy/paste display value
• Double-tap display to show stack and all memory registers
• Additional conversions: Celsius vs. Fahrenheit, liters per 100km vs. mpg (US and UK) (optional)

Tap the display for some basic hints.

For more information and a short manual visit the homepage: cuveesoft.ch

What’s New

Version 2.1

• 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)

Ratings and Reviews

5.0 out of 5
2 Ratings

2 Ratings

stu36 ,

Perfect replica

Ah RPN. The memories.


Willy Kunz
16.8 MB

Requires iOS 11.0 or later. Compatible with iPhone, iPad and iPod touch.


English, French, German

Age Rating


  • Family Sharing

    Up to six family members will be able to use this app with Family Sharing enabled.

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