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15C Scientific Calculator by Vicinno

By Vicinno Soft LLC

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15C scientific calculator is a high-end scientific programmable calculator for iPhone and iPod touch, which behaves exactly like, and supports all functions of HP 15C Scientific Calculator.

"15C Scientific Calculator supports complex numbers, intense calculations, matrix operations, and many other features that I don't have room to list. " --

"This is a terrific emulation of the venerable HP-15C calculator -- the best one I've found in the App Store (and believe me, I've tried the others). Works just like the original, and it comes with a wealth of help functions -- pressing the Help button reveals the original User Manual and Advanced Functions Handbook in PDF format, as well as manuals for a number of other HP calculators. And it's always as close as your phone. " -- from app store review

"Does exactly what my HP15C does, and always with me in my pocket" -- David, Financial Analyst.

Built with identical mathematics and algorithms, it gives you same capabilities and better performance. It can perform numerical integration and solve the roots of equations in addition to supporting complex numbers and matrix calculations.

**** Features ****

• Root finder
• Numeric integration
• Complex numbers
• Matrix operations
• Hyperbolic and inverse hyperbolic trig functions
• Probability (combinations and permutations)
• Factorial, % change, and absolute value
• Random number generator
• RPN entry
• Programmable
• Option to disable/enable key click feedback sound
• Automatically save/restore settings during app close/start
• Click menu key to see more options.
• More ...

**** Support ****

Feel free to contact us if you need any support by visiting or simply email us at

**** Stay tuned ****

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What's New in Version 1.89

1. added auto-rotate support.
2. optimized the display font.

iPhone Screenshots

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Customer Reviews

If you like the original HP calculator, you will love this

I use this more than anything else on my phone. The app functions beautifully.

HP 15 C emulator

I still treasure my 15C from the mid-1980s and now I can have it on my iPhone.
I still have my HP manual with the programs for TVM. Simple to program the 100 or so lines into this app and the 15C is also a 12C! Excellent app!

Perfect replica

I have had one of these since 1984, but dropped it and killed the display. This has restored the RPN world for me in a very correct nostalgic way. Get it!

15C Scientific Calculator by Vicinno
View in iTunes
  • $5.99
  • Category: Utilities
  • Updated:
  • Version: 1.89
  • Size: 10.4 MB
  • Languages: English, Catalan, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Vietnamese
  • Seller:

Compatibility: Requires iOS 6.0 or later. Compatible with iPhone, iPad, and iPod touch.

Customer Ratings

We have not received enough ratings to display an average for the current version of this application.
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