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JRPN 15C

JRPN 15C

by Philip Starner

5 ratings
4 reviews
🔧 Utilities
📊 Productivity

Archived App (Last seen on 19 Jun 2026)

This is an archived listing of the app previously available on the App Store.

Although the app is no longer distributed by Apple, you can still view its description, screenshots, version history, ratings, and metadata for reference.

Details

  • Released
  • Updated
  • April 11, 2024
  • April 11, 2024

Features

Developer

Philip Starner
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About

This app emulates the functionality and appearance of the classic HP-15C scientific calculator. It offers advanced mathematical features like complex math, matrices, and numerical integration, replicating the 1982 device's state-of-the-art capabilities.

✓HP-15C simulation
✓Seven-segment display emulation
✓Complex math
✓Matrices
✓Numerical integration
✓Equation root solving
✓Statistics
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What's New in JRPN 15C

2.1.13

April 11, 2024

User reviews

Most RecentHighest RatedLowest Rated

Wonderful.

Far superior than the one offered by MORAVIA consulting!
eternal bhaktaeternal bhakta

JRPN 15C Perfect

JRPN’s two calculators JRPN 15C and JRPN 16C) are just perfect. Everything works flawlessly and no ads. I use JRPN 15C almost exclusively. Highly recommended! Thank you!
WizmusWizmus

"Thoroughly Enjoyable”

Functions just like my original HP-15C. Fits nicely on my iPad while occupying very little memory storage compared to other similar apps.
Mike Brady 94107Mike Brady 94107

Excellent free app

The developer’s software implementations of both the HP15C and HP16C are excellent. A very thoughtfully laid out portrait mode is a fantastic bonus too (the original HP calculators were landscape only). The f and g function legends have good contrast and are easy to read but there is also an option to customise them using different colours. You can also customise the colours of the LCD display. Programs can be imported and exported, you can take a look at the back panel which acts as a handy reference, just like on the original models, and there is a link to a user manual. The icing on the cake is that these two great apps are totally free so I have extra praise for the developer for taking the time to recreate these two wonderful calculators and provide them at no charge.
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FAQ

What is JRPN 15C?

JRPN 15C is a free scientific calculator application that accurately simulates the appearance and behavior of the classic HP-15C calculator from 1982. It includes advanced mathematical functions.

What advanced math functions does JRPN 15C offer?

JRPN 15C supports complex math, matrices, numerical integration, solving for the root of an equation, and statistics. These features replicate the state-of-the-art capabilities of the original HP-15C.

Does JRPN 15C have ads?

No, JRPN 15C does not contain advertisements. It is a completely free application with no ads.

What devices is JRPN 15C available on?

JRPN 15C is available for iPhone and iPod devices. It is designed for iOS.

How often is JRPN 15C updated?

JRPN 15C was last updated on April 11, 2024, with version 2.1.13. The developer actively maintains the application.

What is the user rating for JRPN 15C?

JRPN 15C has a perfect rating of 5.0 stars based on 5 user ratings, indicating high user satisfaction.

Is the source code for JRPN 15C available?

Yes, the full source code for JRPN 15C is publicly available on Github, allowing for transparency and community contributions.

What is the age rating for JRPN 15C?

JRPN 15C has an age rating of 4+, making it suitable for a wide range of users, including younger individuals interested in mathematics.