Vintage-45
Vintage-45 is #66 in Productivity Paid in Australia and charting in 1 of 24 countries we track.
Updated 28 Sep 2026 · rankings refresh through the day
DeveloperCuVee Software
CategoryProductivity
Price1.99 AUD
Released
Rating★ 5.0 (2)
Version3.3
Age rating4+
First seen by us
25 Sep 2026
25 Sep 2026Installs (est.)1k+ worldwide
Rating
5.0 ★
2 ratings
Measured
Best rank now
#66
Productivity PaidMeasured
Vintage-45 on the App Store
App details
App ID
506402272
Publisher
Willy Kunz
On the store since
Mar 2012
14 years on the store
Minimum OS
iOS 12.0+
iPhone 5s and later
Devices
iPhone · iPad
Content rating
4+
Languages
3
EN FR DE
Size
18 MB
Also listed in
Utilities
Vintage-45 downloads
Worldwide, per day, and installs to date. The band is open; the exact number is free with an account.
How this is calculated
Apple publishes no download counts. iPhone downloads come from chart positions and daily rating growth per country, calibrated on Google Play install counts; lifetime installs from ratings worldwide × installs per rating. Confidence is the chance the real number is within half to double ours.
Where Vintage-45's downloads come from Modelled
Last 30 days: organic search, browsing the store, features and paid ads.
Active users
All platforms, worldwide. Free with an account.
Stickiness (DAU / MAU)
how many monthly users open it on a given day
How this is calculated
Monthly users come from lifetime installs across every store, fitted on monthly active user figures companies publish; daily users = monthly × the typical daily/monthly ratio for the category. Confidence is the chance the real number is within half to double ours.
Where it ranks now
Every top chart it appears in across 24 countries.
| Country | Charts | Rank |
|---|---|---|
| Australia | ProductivityPaid | #66 |
Apps near Vintage-45 on the chart
Productivity Paid, around #66.
Ratings
App Store, worldwide.
Rating
5.0 ★
2 ratings
Measured
Ratings
2
Measured
About Vintage-45
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.
Features:
• 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
• Tap display to show stack and all memory registers
• Additional conversions (optional): Celsius vs. Fahrenheit, liters per 100km vs. mpg (US and UK), m/ft, g/oz, g/ozt
Double-tap the display for some basic hints.
For more information and a short manual visit the homepage: cuveesoft.ch
Features:
• 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
• Tap display to show stack and all memory registers
• Additional conversions (optional): Celsius vs. Fahrenheit, liters per 100km vs. mpg (US and UK), m/ft, g/oz, g/ozt
Double-tap the display for some basic hints.
For more information and a short manual visit the homepage: cuveesoft.ch
Latest updates
3.3
• Improved compatibility with real HP-45 when using D.MS conversions:
– With "Extras" set to off (yellow key, then "+" key to toggle): same results as real HP-45
– With "Extras" set to on: improved results (no digits dropped by conversion)
EXAMPLE
Convert 12.345612:
– "Extras" off: D.MS-> 12.58225556, then ->D.MS back to 12.34560000
– "Extras" on: D.MS-> 12.58225556, then ->D.MS back to 12.34561200
