RPNscfi

RPNscfi

Financial&Statistics RPN Calc.

2 ratings
3 reviews
$2.99 Free

Price history


Details

  • Released
  • Updated
  • September 28, 2012
  • November 5, 2025

Features

RPNscfi screenshot #1 for iPhone
RPNscfi screenshot #2 for iPhone
RPNscfi screenshot #3 for iPhone
RPNscfi screenshot #4 for iPhone
RPNscfi screenshot #5 for iPhone
RPNscfi screenshot #6 for iPhone
RPNscfi screenshot #7 for iPhone
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About

This app is a powerful RPN calculator with unlimited stack depth, offering financial, statistical, and scientific functions. It supports a wide range of number magnitudes and includes features like amortization schedules, regression analysis, and unit conversions.

Unlimited stack depth RPN calculator
Financial calculations (loans, mortgages)
Statistical analysis (regression, correlation)
Scientific and engineering functions
Unit system conversion
Built-in PDF User's Manual
Tape history browser and editor
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What's New in RPNscfi

3.42

November 5, 2025

The use of Mac up/down arrow keys has been replaced to avoid hidden compatibility issues with macOS, such as macOS-emulated mouse and trackpad movements. Documentation Updates: Section 9, titled “Keyboard Shortcuts for RPNscfi on Mac,” the table in subsection 9.2, and Figure 9.1 in subsection 9.3 have been updated.

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User reviews

Great RPN but major iOS14 issue

Both versions (RPNscfi and ProgCalc) we working fine on iPhone and iPad until iOS 14. Now on iPad there is a white bar that goes across the bottom of the screen in both portrait and landscape mode and hides the lower row of buttons. Hopefully this can be addressed in the next version!

Best rpn out there

As stated in the title, best calculator app. It's extremely powerful yet even a novice can use it. All in all, I would highly recommend. The developer is very responsive and has addressed all of my questions.

Tip:
There is a hidden help menu under options. Awesome feature but many may not notice it.

Features that I really like:
As a professional, I'm required to do fast number crunching. Love the ability to whip open the app and punch away.
Black theme with blue font looks very professional and easy on the eyes.
Ability to set dec or eng or fin by simple up down swipes. Also, ability to set decimal places by simple left right swipe on display panel.

Features I would love to see in the long run:
Ability to email directly from app in a beautiful format like Digits or Soulver.

Bottom line: I would pay $5 for this. It's the scientific version of pcalc and does many things far better.
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AWESOME

This is hands down the best calculator app ever. Tons of features and customer support is amazing. You can't go wrong. In fact, when I suggested that they add a delete key, they do so in a few days. How's that for customer support? Simply amazing.

Developer apps

FAQ

What is RPNscfi?

RPNscfi is a 15-digit RPN calculator designed for financial, statistical, and scientific calculations. It features unlimited stack depth and supports a broad range of number magnitudes, making it suitable for complex computations.

What financial calculations does RPNscfi offer?

RPNscfi provides comprehensive financial calculations including mortgage and loan computations, amortization schedules, savings plans, pension fund calculations, and lease analyses. It also aids in budget management with 'what-if' scenarios.

Can RPNscfi perform statistical analysis?

Yes, RPNscfi includes a statistics calculator with functions for mean, standard deviations, weighted mean, and various regression analyses. It also offers a regression graph feature for visual data navigation and a test generator.

What scientific functions are available in RPNscfi?

The scientific calculator in RPNscfi supports common trigonometric, hyperbolic, logarithmic, and exponentiation functions. It also includes operations like arbitrary rounding, mod, ceil, floor, percentage, factorial, binomial coefficient, and greatest common divisor.

Does RPNscfi support unit conversions?

Yes, RPNscfi has a unit system conversion calculator for metric to imperial needs, covering length, area, weight, volume, and temperature conversions.

How can I learn to use RPNscfi?

RPNscfi includes a built-in PDF User's Manual accessible via the 'OPTIONS' menu. Section 1.3 offers a quick tour, and Section 2.6 is available for those unfamiliar with RPN calculators.

What devices is RPNscfi available on?

RPNscfi is a universal app that supports iPhone, iPad, and iPod. It is also designed for iPad and functions as an iOS application on macOS.

Does RPNscfi have ads?

RPNscfi is free and does not contain advertisements, providing an uninterrupted user experience.