Best Touch Rpn Calc Apps

249+ iOS apps curated and reviewed

4.2 avg rating

14 free apps

Updated October 2026

If you already know Touch RPN calc, this is the deeper bench. 249+ touch rpn calc apps for iPhone, all reviewed and ranked by user rating, recency, and download trend as of October 2026.

Compare top Touch Rpn Calc Apps (October 2026)

#	App	Price	Rating	Ads	In-App Purchases	Updated
1	Touch RPN calc	Free	3.4★ (210)	Yes	Yes	Nov 2026
2	RPN Calc	$0.99	4.0★ (6)	No	No	Oct 2026
3	r.Calc	$0.99	4.0★ (3)	No	No	May 2026
4	Rpn Calculator SW	Free	—	No	No	May 2026
5	bcRPN	Free	4.8★ (8)	No	No	Oct 2026
6	RPN Calculator free	Free	1.0★ (1)	No	No	Aug 2026
7	RePNCalc - RPN Calculator Pro	Free	5.0★ (2)	No	Yes	Oct 2026
8	Complex RPN Calculator	Free	3.9★ (24)	No	No	Oct 2026

Top Picks for Touch Rpn Calc

#1

Touch RPN calc by Elvis Pfutzenreuter

Financial/Sci RPN calculator

Editor's Choice

3.4😊(210 ratings)

FreeAdsIn-App Purchases

Touch RPN calc screenshot 1

Touch RPN calc screenshot 2

Touch RPN calc screenshot 3

Touch RPN calc screenshot 4

Touch RPN calc screenshot 5

Touch RPN calc screenshot 6

This app offers a powerful RPN calculator with financial and scientific functions, mimicking popular industry-standard models. It includes programming capabilities and expandable flavors for diverse calculation needs.

What We Love

🚀 Excellent HP calculator emulation
👍 Looks and works like the real thing
👍 Portrait and landscape modes
👍 Paid version is ad-free
👍 Great RPN calculator

Room to Improve

🐛 Ads in free version
🐛 Ads appearing in paid version
🐛 Incorrect calculations
🐛 Landscape mode issues
🐛 Inability to clear memory

#2

RPN Calc by James Mattis

Strong Contender

4.0(6 ratings)

$0.99

RPN Calc screenshot 1

RPN Calc screenshot 2

RPN Calc screenshot 3

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.

#3

r.Calc by Nicolas Jorand

Worth Considering

4.0(3 ratings)

$0.99

r.Calc screenshot 1

A straightforward calculator utilizing Reverse Polish Notation (RPN) for everyday calculations. It offers a four-level visible stack with a total capacity of 100 positions, providing visual feedback on stack fullness. Basic arithmetic operations and stack manipulation functions are included.

More Touch Rpn Calc apps to explore

Rpn Calculator SW

Rpn Calculator SW

Rpn Calculator SW

by Paul Wilkins

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

RPN Calculator free

RPN Calculator free

RPN Calculator free

by Benjamin Pisano

This utility app offers a scientific calculator with Reverse Polish Notation (RPN) mode for faster calculations. Its simple interface is designed for engineers and scientists, providing efficient computation on iPhone devices.

Scientific calculator functionsReverse Polish Notation (RPN) modeFast calculation

RePNCalc - RPN Calculator Pro

RePNCalc - RPN Calculator Pro

RePNCalc - RPN Calculator Pro

Easy Reverse Polish Notation

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

free with in-app purchases

Complex RPN Calculator

Complex RPN Calculator

Complex RPN Calculator

Complex Numbers RPN Calculator

This scientific calculator utilizes a four-level stack and natively handles complex numbers. It allows users to input and view numbers in both polar and rectangular formats, remembering its state and offering 10 memory locations.

Complex number supportFour-level stackPolar and rectangular formats

RPN Calculator 48

RPN Calculator 48

RPN Calculator 48

RPN Scientific Calculator

This app offers a scientific calculator with Reverse Polish Notation (RPN) functionality, providing an alternative to the default calculator. It features a large, easy-to-read display, a 100-entry stack, and extensive undo/redo capabilities. Its design is inspired by classic HP calculators.

Reverse Polish Notation (RPN)Scientific calculator functionsSwipe gestures for undo/redo

RPN everywhere with you.

This scientific calculator offers Reverse Polish Notation (RPN) for faster calculations. It includes 54 mathematical functions, coordinate conversions, and unit conversions, all within a simple interface.

RPN calculation mode54 mathematical functionsTrigonometry (simple and hyperbolic)

No Equal RPN Calculator

No Equal RPN Calculator

No Equal RPN Calculator

This scientific calculator utilizes Reverse Polish Notation (RPN) for efficient complex calculations, mirroring the functionality of classic HP calculators. It features a continuously visible stack for better tracking and includes 10 memory registers, plus a dedicated quadratic equation solver.

Reverse Polish Notation (RPN)Always visible stack10 memory registers

Stack RPN Calculator

Stack RPN Calculator

Stack RPN Calculator

by Dario Bersiga

This scientific calculator displays major functions on screen and utilizes a stack for calculations. It supports a stack of up to 4 values but can store many more numbers depending on device memory.

Visible scientific functionsRPN (Reverse Polish Notation) inputStack display for up to 4 values

📊 Productivity

RPN Memory Calculator

RPN Memory Calculator

RPN Memory Calculator

RPN Multi Function Calculator

This application provides a straightforward reverse Polish notation (RPN) calculator with essential functions and memory operations. It also includes integrated unit conversions for various measurements, allowing for quick conversions directly within the app. The calculator remembers your session, preserving all registers and memory values for future use.

Reverse Polish Notation (RPN) inputSeven core calculator functionsMemory operations

A calculator designed for users who prefer Reverse Polish Notation (RPN). It offers a familiar interface for RPN users and includes support for duodecimal calculations.

RPN calculation styleDuodecimal (dozenal) supportFamiliar interface for RPN users

by Mike Wesemann

A visually appealing and straightforward calculator app for iPhone and iPad. It offers a unique user interface with support for basic and scientific calculations, various number base conversions, and currency and unit conversions.

Universal app for iPhone and iPadBasic and scientific calculationsNumber base conversions (decimal, hex, binary, octal)

Halcyon Calc Lite

Halcyon Calc Lite

Halcyon Calc Lite

by Halcyon Touch Software

This app is a powerful calculator for students and professionals, offering advanced features like symbolic expression manipulation, graphing, and statistical analysis. It supports real, complex, and integer numbers, matrices, and vectors, making it versatile for various mathematical tasks.

Symbolic expression manipulationGraphing of expressionsMatrix and vector calculations

free with in-app purchases

First programmable calculator!

Experience a faithful simulation of the groundbreaking HP-65 programmable calculator on your iPhone. This app offers virtual program and data cards, a paper tape printer, and a robust card manager. Explore four distinct operating modes, including an enhanced "Super-65" option.

Virtual program and data cardsVirtual paper tape printer with AirPrintDatabase-driven card manager

📊 Productivity

Calc - Minimalist

Calc - Minimalist

Calc - Minimalist

Minimalist Calculator

Modern RPN calculator

A minimalist reverse Polish notation calculator for iOS devices. It offers Standard, Binary, and Hex modes for quick calculations and programmer-friendly conversions, featuring a clean interface and a 4-level stack.

Reverse Polish Notation (RPN) inputStandard, Binary, and Hex modes4-level visible stack

Numeric Correction Calculator

Numeric Correction Calculator

Numeric Correction Calculator

Easy correct by touching disp

FAQ about Touch Rpn Calc

What are the best touch rpn calc apps for iPhone?

Touch RPN calc tops our touch rpn calc apps ranking as of October 2026, with a 3.4-star average from 210 App Store ratings, and it's free to download.

Are there free touch rpn calc apps for iPhone?

Yes — 14 of the top touch rpn calc apps we rank are free to download, including Touch RPN calc and Rpn Calculator SW.

Does Touch RPN calc have ads or in-app purchases?

Touch RPN calc shows ads and offers in-app purchases, according to its App Store listing as of October 2026.

How many touch rpn calc apps are on the App Store?

We track 249+ touch rpn calc apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.