Lovely, useful—now with haptic key clicks!
It seems just a few weeks ago I asked for haptic key click and now here it is! This is a nifty reminder of the satisfying “thunk” of the famously high quality keys of these classic physical calculators.
$2.99
About RPN
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- iOS Version
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- Size
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Features
Developer of RPN
World's first pocket computer! Now running on your iPhone.
RPN-65 SD is the iPhone version of RPN-65 Pro, the first complete simulation of Hewlett-Packard's stunning HP-65 programmable calculator for iOS. Produced from 1974 to 1977 at an initial price of $795 (that's close to $5,000 today!), the HP-65 was a breakthrough. Not only was it programmable, it also contained a motorized magnetic card reader - and still fit into Bill Hewlett's shirt pocket.
Experience this revolutionary calculator on your iPhone. With over 180 original HP programs included with the app, you can get started right away.
"A work of art. Fantastic!" (MacBreak Weekly, episode 572)
Features:
• Virtual program and data cards
• Virtual 2000-line paper tape printer supports AirPrint
• Powerful database-driven card manager
• Create, delete, label, and organize a virtually unlimited number of cards
• Sharing: e-mail, AirDrop, Dropbox, iTunes, copy, paste, print
• Paste existing HP-65 listings into RPN-65 and run them
• "Live" display of stack, memory registers, program counter, flags
• Reads program and data cards created by RPN-65 Pro
• Reads data cards created by RPN-67 Pro/SD and RPN-97 Pro
Run RPN-65 SD in any of 4 modes:
1 - Just like the original HP-65
2 - Like the original HP-65, but at much higher speed
3 - With many user-interface improvements, like backstep key or jump to any program step
4 - "Super-65" with 999 program steps, 120 labels, 120 registers, nested subroutines, and much more
For details, free program downloads, calculator handbook and much more, visit the RPN-65 website: cuveesoft.ch/rpn65
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What's New in RPN
4.1
October 30, 2024
• (iOS 13 or later) The program listing view supports two fonts. Long-press the listing to switch. • Visual adjustments to iPhone 16 Pro and iPhone 16 Pro Max
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FAQ
Is there an iPad version available for RPN?
No, the RPN app is not compatible with iPads.
Who launched the app?
The creator of RPN is Willy Kunz.
What is the minimum iOS version needed for RPN to work?
The minimum iOS requirement for the app is 12.0 or higher.
What user rating does the app have?
RPN has an impressive rating of 5 out of 5, indicating that it is a top-quality app.
What category is the RPN app?
The App Genre Of The Rpn App Is Productivity.
Which version of the RPN app is the latest one?
The newest version of RPN is 4.1.
When was the most recent RPN update made available?
The latest RPN app update was released on January 4, 2025.
Do you know when RPN was first made available?
RPN was first made available on February 6, 2023.
What age group is RPN suitable for?
Safe for kids, with no inappropriate or mature content.
What are the languages available on RPN?
RPN is now available to use in American English.
Can I access RPN via Apple Arcade's subscription service?
No, RPN is not on Apple Arcade.
Is RPN equipped with in-app purchases?
No, RPN does not feature in-app purchases for users.
Is RPN fully compatible with Apple Vision Pro?
Unfortunately, RPN is not fully compatible with Apple Vision Pro.
Does RPN include ads as part of its experience?
No, RPN does not include ads as part of its experience.