11C Scientific Calculator 4+

HP 11C emulator

Vicinno Soft LLC

Designed for iPhone

    • 4.1 • 235 Ratings
    • $5.99

iPhone Screenshots


11C Scientific Calculator is the most accurate and precise emulator of the HP 11C RPN scientific programmable calculator available for iPhone and iPod touch. It uses the same RPN (Reverse Polish Notation) entry system and supports the same mathematical functions as the HP 11C Scientific Calculator.

**** Features ****
• Hyperbolic and inverse hyperbolic trig functions.
• Probability (combinations and permutations).
• Factorial, absolute, integer & fractional.
• % change, and % of total.
• Random number generator.
• Index register for indirect operations.
• User mode to run program labels.
• Cumulative statistical analysis & Linear regression.
• Hour minute second conversion.
• Polar, rectangular conversion.
• RPN entry.
• Programmable.
• In-app manual, quick start help, and in-app support access.
• Option to disable/enable key click feedback sound; and
• Easily switch between US and EU data format/comma or period as decimal point
• Automatically save/restore settings during app close/start.
• Click menu key to see more options.
• More …

*** What People Say About It ***
"Miss your old HP 11C RPN scientific calculator? Then give this utility app a try. It mimics the look and feel of that classic number cruncher in every way possible. It uses the same Reverse Polish Notation entry system and supports the same mathematical functions. There’s even an in-app manual that features tutorial videos in case you’ve lost your touch." ---AppAdvice.com

"This app supports complex numbers, intense calculations, matrix operations, and many other features that I don't have room to list. " ---AppGratis.com

**** Support ****
Feel free to contact us if you need any support by visiting www.vicinno.com or simply email us at support@vicinno.com.

**** Stay tuned ****
Like us: www.facebook.com/vicinno
Follow us: www.twitter.com/vicinno

What’s New

Version 1.73

Bugfix for back help page.

Ratings and Reviews

4.1 out of 5
235 Ratings

235 Ratings

Eldir65 ,

Is great, can you include the Mexican market?

I used the 11C calculator when in the university. I loved it.
For several months stop working after an update and after several updates later it work again. I like it very much. I’ve recommended it to all my fellow students in Mexico but they can’t find this exact app, there are alternatives but you guys, don’t appear.
Could you make it available for the Mexican or Latin American market?

duhiforget ,

I love the 11C SciCalc

It would be a great calculator it I could get it to open! I’ve uninstalled it & it still won’t open. It hasn’t open since the last iOS upgrade 13.2.2. Please fix! I had to go this route since you never answered my email that I sent to your support email. FIX THE PROBLEM

Update! I see a lot of people are having the same problem as I am since the 13.2.2 upgrade. We all paid money for this app it’s a shame They don’t fix the problem. You can’t even get support help it also hangs & don’t let you get a hold of them. Mine don’t even open anymore unless I go to the app & press open but that takes a couple of try’s too. I now just leave it running in the background.

Padres2014!!! ,

Still won’t open! Return my money!!!

I bought this app many years ago after my great HP11C finally failed. Loved the app! Gave it a great 5-star review, and I normally do not review apps. Just like the 11C without needing to carry an extra device around. But months ago it would no longer open. Eventually, I gave up and deleted it. I saw in the App Store that it was available again, checked recent reviews that indicated the non-opening issue had apparently been fixed, and paid for it again. It will not open. I’m running iOS 13.4.1. Useless waste of money. I thought the problem had been fixed. Please fix it or return my money. I’d rather you fixed it; it’s well worth the money if it works!

App Privacy

The developer, Vicinno Soft LLC, has not provided details about its privacy practices and handling of data to Apple. For more information, see the developer’s privacy policy.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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