Best RPN alternatives: apps like RPN-65 Pro

10+ similar apps compared and reviewed

4.8 avg rating

4 free apps

Updated October 2026

RPN-65 Pro

CuVee Software

🔧 Utilities

📊 Productivity

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 by KOB MARKETING

Gift Card Information Platform

📊 Productivity

4.1(371 ratings)

Free

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.

Top Alternatives to RPN

GEYER Y-Design App by Geyer Electronic GmbH

Optimize Oscillator Circuits

Editor's Choice

📊 Productivity

0.0(0 ratings)

Free

RowSwift: Data Explorer by Juan De Dios Santos Rivera

Quick CSV Stats & Charts

Strong Contender

📊 Productivity

5.0(1 ratings)

Free

Analyze and visualize comma-separated files directly on your device. Inspect CSV structures, summarize columns with key statistics, and create various charts like histograms and scatter plots. Filter large datasets and export charts or modified data.

DB50X by Christophe de Dinechin

Color version of DB48X

Worth Considering

📊 Productivity

5.0(8 ratings)

$9.99

This scientific calculator offers high-precision computations with arbitrary precision for numbers. It supports advanced functions like complex numbers, matrices, symbolic calculations, and graphing, with a user-friendly interface and extensive built-in help.

More apps like RPN

i41CX+

RPN Calc with Printer and CAS

$24.99

This advanced RPN scientific calculator offers workstation-class Computer Algebra System (CAS) capabilities, going beyond traditional replicas. It provides access to an extensive library of modules and programs, enhanced with iOS features, customizable skins, and iCloud support for seamless data management.

RPN logic with 4-element stackExtensive memory registersOver 400 built-in functions

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

Compare with RPN

DB48X

Spirit of the HP48, revived

$4.99

This advanced scientific calculator offers arbitrary precision computations, RPN and algebraic operations, and extensive graphing capabilities. It supports complex numbers, matrices, symbolic calculations, and over 1000 built-in functions, inspired by the HP48 series.

Arbitrary precision computationsRPN and algebraic operationsComplex numbers, vectors, and matrices

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.

RPN scientific calculator implementationProgrammer functions (binary, octal, hexadecimal)Fraction mode and probability distributions

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

Compare with RPN

FiveNotes Mobile

Your five notes in your pocket

$3.99

This app provides quick access to five color-coded notes on your mobile devices. It syncs with its macOS counterpart, offering a minimalist design for jotting down ideas, reminders, or to-dos instantly. Features include widgets, Markdown support, and theming options.

Five color-coded notesWidgets for quick accessiCloud sync with Mac

2Do: To Do List, Tasks & Notes

Daily Planner, Reminders & GTD

$19.99

This task management app offers a fluid interface with deep features for organizing daily tasks and projects. It supports natural language input, quick capture methods, and flexible organization with lists, tags, and smart searches. Designed for iPad, it provides a desktop-grade experience with full keyboard and multitasking support.

Natural language input for task creationDesktop-grade multitasking on iPadQuick capture via widgets and Siri