Best apps like RPNPro

10+ similar apps compared and reviewed

4.2 avg rating

8 free apps

Updated October 2026

RPNPro

Felix Meier

🔧 Utilities

📊 Productivity

Looking for something like RPNPro? We've analyzed 10+ similar apps to help you find the best alternative. Each app is compared by ratings, features, and real user reviews, so you can make the right choice.

Top Alternatives to RPNPro

RPNu by Scott Johnson

Editor's Choice

🔧 Utilities

0.0(0 ratings)

Free

|RPN| Scientific Calculator by Bradley Smith

Strong Contender

🔧 Utilities

2.3(3 ratings)

$0.99

|RPN| Scientific Calculator screenshot 1

|RPN| Scientific Calculator screenshot 2

This calculator app uses Reverse Polish Notation for powerful calculations. It offers customizable color schemes, layouts, and online help, designed for flexibility and usability. All features are unlocked with a one-time purchase.

Calccis by Jukka Aittola

A RPN calculator

Worth Considering

🔧 Utilities

0.0(0 ratings)

Free

More apps like RPNPro

RPN Calc

by James Mattis

$0.99

This app provides a straightforward reverse Polish notation (RPN) calculator experience, inspired by classic HP models. It offers a clean interface with large buttons for quick calculations on iPhone, iPad, and Apple Watch, along with a convenient Today Extension for immediate access.

Reverse Polish Notation (RPN) inputClean, simple interfaceLarge, easy-to-press buttons

Tone Flow: Sound Therapy

Sound Frequency Generator

Free

This app generates over 80 curated sound frequencies for wellness, meditation, and relaxation. Explore various categories like Solfeggio and Chakra, or create custom tones with multiple waveform options. Enjoy background playback and lock screen controls for seamless use.

80+ curated sound frequenciesMultiple waveform options (Pro)Custom frequency creation

🔧 Utilities

(1)

free with in-app purchases

Compare with RPNPro

RePNCalc - RPN Calculator Pro

Easy Reverse Polish Notation

Free

This utility app offers a Reverse Polish Notation (RPN) calculator experience for iOS devices. It features customizable key layouts via swipe gestures and long-press options for stack items. External keyboard support is also available.

Reverse Polish Notation (RPN) inputSwipe gesture key layout customizationLong-press stack item options

🔧 Utilities

(1)

free with in-app purchases

This utility app provides a Reverse Polish Notation (RPN) calculator. Users can extend its functionality by programming custom functions and equations using JavaScript.

Reverse Polish Notation (RPN) calculatorUser-programmable functionsJavaScript equation support

This utility app functions as a Reverse Polish Notation calculator. It handles complex numbers and utilizes extended precision for all calculations, offering an unlimited stack depth and an undo feature for up to 10 operations.

Reverse Polish Notation (RPN) inputComplex number calculationsExtended precision math

Duodecimal calculator

Free

This educational calculator promotes the use of Base Twelve (duodecimal) in math and science. It offers standard mathematical functions in both duodecimal and decimal modes, with automatic conversion between them. It utilizes Reverse Polish Notation (RPN) for calculations.

Duodecimal and Decimal modesAutomatic mode conversionRPN (Reverse Polish Notation) input