GO-29 SciRPN

GO-29 SciRPN

by Steve Lidie

4 ratings
2 reviews
$6.99

Details

  • Released
  • Updated
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About

This app offers a highly accurate simulation of the classic HP-29C programmable scientific calculator. It features RPN input, extensive storage registers, and a wide range of mathematical and statistical functions. Users can program complex calculations, import/export programs, and view detailed program information.

RPN input
10-digit LED display simulation
Four stack registers
Thirty storage registers
Extensive math and statistical functions
Programmable with 198 steps
Program import/export
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What's New in GO

26.5.1

June 11, 2026

- Repair broken icon and update documentation. - Update to Apple OS versions 26.5.1.

User reviews

Excellent, with or without the nostalgia factor.

The HP-29C was my go-to calculator at my first job after college, and I loved it for its power, ease of use, and flexibility. This is an outstanding and faithful simulation of that calculator.

But even taken on its own merits, this is a solid scientific RPN calculator. Excellent functionality, solid programmability, and fast performance.
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Best in Class

Imagine my surprise when I found the 29C in the AppStore.
I’ve been looking for this exact model for the last 10 years.
Of course, I bought it straightaway.
I’d like to think I’m the first to purchase, but I doubt it - one of the first’ll do.

Thanks so much for building this. Never saw myself as ocd. Guess I must be - bought my HP29C back in ‘75 - still working fine.
One thing I’ll say now about the HP29C over the HP25, the ‘29 fills in all the blanks on the ‘25 keyboard.
and, for programmers, the DEL Key is so much more practical than NOP.
In my opinion, the HP29C was by far the best in class of its time. 20 addressable registers, Continuous memory and Subroutines put it in a different dimension from others. It’s amazing what you can do with just 98 program steps with that little lot.
I hope you’re all going to enjoy this as much as I know I’m going to.
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Developer apps

FAQ

What is GO-29 SciRPN?

GO-29 SciRPN is a mobile application that closely simulates the functionality and operation of the vintage HP-29C Programmable Pocket Scientific Calculator from 1977. It provides a retro computing experience with advanced scientific and programming capabilities.

What is RPN and does GO-29 SciRPN support it?

RPN stands for Reverse Polish Notation, a calculator input method that uses a stack. GO-29 SciRPN fully supports RPN, mirroring the input style of the original HP-29C calculator.

How many storage registers does GO-29 SciRPN have?

GO-29 SciRPN features thirty storage registers, divided into 10 primary registers, 6 statistical registers, and 14 indirect registers, allowing for complex data management and calculations.

Can I program calculations on GO-29 SciRPN?

Yes, GO-29 SciRPN is programmable with memory for 198 program steps. It supports labels, subroutines, branching, conditionals, and indirect addressing for creating custom calculation sequences.

What devices does GO-29 SciRPN support?

GO-29 SciRPN is available on a wide range of Apple devices, including iPhone, iPad, iPod, Mac, and Apple TV, ensuring broad compatibility for users.

How often is GO-29 SciRPN updated?

The app was last updated on September 17, 2024, indicating active development and support. This suggests regular maintenance and potential feature additions.

What is the price of GO-29 SciRPN?

GO-29 SciRPN is a paid application priced at $6.99. This one-time purchase grants access to all its features without any recurring fees or advertisements.

Does GO-29 SciRPN have ads?

No, GO-29 SciRPN is ad-free. As a paid application, it provides an uninterrupted user experience without any advertisements.