Outstanding program
The designers/coders sweat the details. The appearance of the calculator is identical to the physical calculator. Excellent work !!!
iPhone 17
It’s apparently not possible to close the screen, or close the app on the iPhone 27, which has virtual handles on the screen corners. You must turn off the screen and then switch. Thanks for your support.
I hope you can fix this, as I have enjoyed the app for many years.
I hope you can fix this, as I have enjoyed the app for many years.
Bad app
Locks my iPhone in landscape mode, next to impossible to exit app
An old friend
I was delighted to find this. I still own, and use, both 40 year old 15C and 12C calculators I acquired working at the HP IC fab that made chips for them. Thanks for bringing the 15C to my iPhone!
Good, but no way out
As far as a HP11, it’s fine. But, there is no exit button, half swipe up app switcher fails also
Just the best thing!
Appreciate the work to keep the app current.
Engineering must
I’ve been using this for many years in my work. Love it. Except, this week, the entire screen started to blink. Is there a fix?
Fantastic
If you know, you know…
An Old Friend now on my phone
Near perfection. The only thing I wish they would do is to add haptic feedback on the keyboard. Well done , guys.
Still working on iOS 18
Just like the original calculator that I used as I got my PhD in physics. The best by HP.
My go to calculator for years
After a few bumps with the loss of a home button, this is back. Thank goodness!
Awesome
I use it almost daily at work, and it always gives me pleasure to see that 15C image!
Still works in 2024!
Good job future-proofing the app!
I use it every day
I love this app. One minor issue is that with the loss of the home button, it’s not so easy to close the app. It’s hard to get the skinny bar to turn white. I’d also like a click sound when I touch a key.
Excellent for a free RPN HP-15C calc
This is still my default calc in my iPhone. I even deleted the iOS calc !!!!
Way back machine to college days
I absolutely love this calculator! I started with a 25c for electronics. I now have an 11c and a 16c. This is my favorite go to calculator now. It is perfect for RPN users. Love it, love it, love it!
App will not close- iOS 17.0.3
Been using this app for years, you could always close it by swiping it off the screen. Once it’s on an iPhone with no Home button, you can’t exit the app. The only way to exit the app and get back to the icons is a hard off (power + volume up button)
Thank you for this great emulation!
I have loved the HP-15c since university. Once I got used to RPN style calculators, I never wanted to go back. You can easily calculate equations without fooling around with parentheses, storing and recalling intermediate values, etc. I still have my working HP-15c , but this tool lets me leave it at home and still use my calculator of choice wherever I go. Thank you, again!
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Great app
Needed a calculator in a pinch and found this. Having used the 15c from way back I was impressed at how well this is done. Thank you
Realistic implementation, just needs stick on tactile keys
Definitely spooky, as real as it gets, even the programing works.
