Just about perfect
Perfect timeless calculator on my high resolution iPhone Air. Arguably better than the actual calculator
15C Emulator - Great App!
Nothing ever beats the real thing, but if you are in a pinch and don’t have your 15C in front of you, this emulator is as good as it gets.
Fantastic App. RPN IS GREAT
This is a fantastic App and I find it absolutely fantastic software version of the original hardware HP Calculator.
I used this very hardware HP calculator for many years when it first came out and it was a must have. Unfortunately I lost it.
It was a life saver when I discovered your app.
My grateful thanks for this wonderful app.
I simply couldn’t go without it.
I used this very hardware HP calculator for many years when it first came out and it was a must have. Unfortunately I lost it.
It was a life saver when I discovered your app.
My grateful thanks for this wonderful app.
I simply couldn’t go without it.
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HP 15c
Great reproduction of the classic! Works great in the iPhone 6. I'm an electrical engineer who still depends on my 15c. Main complaint is the very loud clicks for the buttons which is very annoying, especially since there is no way to disable or lower its volume from within the ap. Turning off the ringer on the side of the iPhone to disable sound works but is unacceptable. Hopefully HP will fix this soon - especially if enough of us complain. However, the calculating capabilities work exactly as the original.
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Just Like Old Times
I have been an engineer for over 30 years. Always used HO 15. This app is even better than original calculator.
Super
Als Option bei einem zukünftigen Upgrade wäre das Umschalten auf den HP-11C noch toll.
A Cientifica perfeita
Eu uso essa HP desde da década de 80, eu formei na Politécnica somente com essa tecnologia da época..!
Can’t live without this
Been using this for years!
Nice update
Thanks for giving the emulator’s vertical layout the same features as the original calculator and the horizontal layout.
Faithful replica
Matches my actual 15C perfectly!
Excellent App
Very happy this spp is being maintained. Nice update. The 15c is one of the best calculators Hewlett-Packard ever made.
iPhone XS Max iOS 13.5.1
Love thi new portrait format as so much easier to use which doesn’t have the limitation of the old basic calculator. Very pleased.
Regards, Martin Basil
Regards, Martin Basil
Looks neat, works great
This app is not just a retro gimmick. The calculator is very usable. My only complaint: The skin is a bit dark and low contrast for my taste.
Best app ever
HP15c is the calculator that I used when I was in engineering school and this app does and excellent job of emulating that device! I have used many apps over the years and, by far, this one is the best one I’ve ever paid for.
Brilliant app
I use scientific calculations all day, and this app is silky magnificent. It has been worth the price many ties over, and I would hate to be without it. Fantastic!
RPN Rules
I love the RPN input system. I have this original calculator and this “app” will always be on my phone and tablet.
This refresh looks great on modern devices
Disclaimer - I'm a long-time HP calculator fan who has spent $thousands on the hardware versions. When they were first released I bought the official apps for HP 12C Platinum, HP 15C, and HP PRIME PRO. The 12C Platinum is no longer in the store so I had to buy the new 12C. This 15C came as a free update and it's now in the dock of my iPhone. The 12C and 15C are both in the dock on my iPad. Both have been long-due for an update, so the new apps are a welcome surprise. Modern screen-sizes are now fully supported, and best of all we now have proper a proper portrait mode with the full keyboard available. The 15C looks great on both iPhones and iPad. Unfortunately it's not (yet?) available as an installable app on M-series Macs, but the 12C is. If you love RPN and the find HP calculators both beautiful and highly functional, you need this.
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To use on iOS 12, delete & Reinstall
Updated to iOS 12 and it stopped working. I deleted it and powered down iPhone. Restarted and re-installed and it works again.
Superb Scientific RPN Calculator
I’ve had HP15c calculators since the mid-1980s, and until I had a smartphone to carry around, always had one in my everyday carry. Now that this beautiful emulator exists, I have the best of both worlds. Thanks!!
Classic programable calculator
I still have the hardware version and am pleased to see this software version so accurately rendered.
