Best RPN alternatives: apps like RPN-67 NP

10+ similar apps compared and reviewed

4.6 avg rating
9 free apps
Updated October 2026

RPN is great, but it's not the only option. Explore 10+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

KobCard

KobCard by KOB MARKETING

Gift Card Information Platform
4.1(371 ratings)
Free
KobCard screenshot 1
KobCard screenshot 2
KobCard screenshot 3
KobCard screenshot 4

KobCard is a comprehensive gift card information platform that offers real-time exchange rates, price calculations, and the latest news on gift cards. It serves as a one-stop destination for individuals looking to buy, sell, or stay informed about the world of gift cards.

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Top Alternatives to RPN

DB40X#1

DB40X by Christophe de Dinechin

High-precision RPL calculator
Editor's Choice
📊 Productivity
4.7(7 ratings)
Free
DB40X screenshot 1
DB40X screenshot 2
DB40X screenshot 3

A high-precision scientific calculator inspired by the HP48 series, offering arbitrary precision computations, complex numbers, vectors, matrices, and graphing. It supports RPN and algebraic operations, with over 1000 built-in functions and a hyperlinked help system.

4.7(29 ratings)
Free
WP 34s screenshot 1

This app is a powerful RPN scientific calculator with extensive functions for mathematics, statistics, programming, and engineering. It includes programmer functions, fraction mode, probability distributions, and a stopwatch, offering a comprehensive tool for complex calculations.

4.9(15 ratings)
Free
WP 31s screenshot 1

This app emulates a classic RPN scientific calculator, offering a rich function set for daily use with a simplified interface. It's based on the more complex WP 34s but is designed for easier operation.

More apps like RPN

4
RLM-15CX
RLM-15CX
RLM-15CX
Advance Scientific Calculator
Free

This advanced scientific calculator emulates the functionality of the HP-15C, offering comprehensive tools for finance, business, statistics, and scientific calculations. It supports programming, equation solving, and unit conversions, optimized for iOS devices.

Programmable advanced scientific calculatorFinance and business calculation menusStatistics and probability functions
📊 Productivity
(18)
free with in-app purchases
5
i41CX
i41CX
i41CX
RPN Calc
$7.99

This app offers a powerful RPN scientific calculator experience, functionally equivalent to a renowned model. It provides extensive memory registers, over 300 built-in functions, and programmability. Advanced features can be unlocked via in-app purchases.

RPN logic with 4-element stack319 main and 124 extended memory registersOver 300 built-in functions
📊 Productivity
(45)
free with in-app purchases
6
All in One Calculator
All in One Calculator
All in One Calculator
Many calculators in one app
Free

This comprehensive calculator app offers a wide range of functionalities for everyday and complex calculations. It features multiple calculator views, a unit converter, and a detailed history log. Designed for ease of use and accessibility, it supports multitasking and various input methods.

Multiple calculator views (Standard, RPN, Programmer)Extensive unit converter with nearly 500 unitsDetailed calculation history with annotation
📊 Productivity
(187)
free
7
RLM-19BX
RLM-19BX
RLM-19BX
Finance & Science calculator
Free

This app offers a comprehensive suite of financial, business, scientific, and statistical calculators. It includes specialized worksheets for loan amortization, bond pricing, currency exchange, probability distributions, and complex number operations. Users can also perform date and time calculations, solve arbitrary equations, and convert units.

Finance worksheets (amortization, bonds, options)Business tools (bill split, break-even, currency)Statistical analysis (probability, regressions)
📊 Productivity
(7)
free with in-app purchases
8
iHP48
iHP48
iHP48
The classic HP48 improved
Free

This app brings the powerful HP48 calculator experience to your mobile device. It offers enhanced performance, seamless file management, and a customizable interface with support for various HP calculator models. Enjoy a familiar and convenient calculator solution without needing extra hardware.

Supports HP38, HP39, HP48, HP49, HP50 calculatorsHaptic feedback and customizable zoom optionsSeamless file transfer via iTunes and Files app
📊 Productivity
(302)
free
9
RLM-17BX Calculator
RLM-17BX Calculator
RLM-17BX Calculator
Finance Stats & Science Solver
Free

This app offers a comprehensive suite of calculators for finance, business, science, and general use. It includes specialized worksheets for loans, investments, statistics, and complex mathematical functions, designed to leverage iOS device capabilities.

Finance worksheets (amortization, bond pricing, options)Business calculations (bill split, break-even, currency)Statistical analysis (probability, regressions)
📊 Productivity
(1)
free with in-app purchases
10
Math Notes - Math Solver
Math Notes - Math Solver
Math Notes - Math Solver
Calculator, LaTeX, Math AI
Free

This app offers a specialized keyboard and editor for creating and managing mathematical expressions. It supports LaTeX, real-time rendering, and various export formats, making it ideal for students and professionals alike.

Innovative Math KeyboardMultiple Math SymbolsReal-Time Rendering
📊 Productivity
(22)
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