15C scientific calculator is the most accurate emulator of HP 15C RPN high-end scientific programmable calculator. We use the identical mathematics and calculations with the original to deliver exactly same capabilities and excellent 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

• In app user manual, quick start guide, and online support

• Option to enable/disable audible key clicks, and

• Easily switch between US and EU data format/period or commas as the decimal point

• Automatically save/restore settings

• Keyboard shortcuts on all keys for fast input.

• More

**** Support ****

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

What's New

Version 2.3

1. add copy-to-clipboard function.
2. bug fix on exponent number display by using a fixed width digital font.
3. add comma as keyboard shortcut when using comma as decimal point.
4. optimize keyboard shortcuts to use one character in most cases.

Customer Reviews

4.8 out of 5

48 Ratings

48 Ratings

nice calculator, needs better display font


this calculator is great. I have the actual HP-15 as well and it's a plaisure to go back and forth between the two seemslesly. my grip with it since the first version has been the display font though. it keeps changing at every other version release but it has never rendered the same experience as on the real calculator. please update with a segmented, fixed width font, just like the real calculator.

Copy Clipboard made almost perfect Calculator perfect


I have used this calucaltor for several years. The only problem was that you couldn't copy the answer to the clipboard to paste in applications. Now you can. Great tool. Thanks! Highly recommended.

fine dup of real calculator


my last reverse polish HP calculator gave up the ghost several years ago. this is an excellent 2D version, which i often use.


Vicinno Soft LLC
1.8 MB
Age Rating
Rated 4+
© 2012 Vicinno Soft LLC, All Rights Reserved


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.