Best apps like RPN-65 Pro

10+ similar apps compared and reviewed

4.8 avg rating
5 free apps
Updated July 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
📊 Productivity
4.0(62 ratings)
Free
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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

i41CX#1

i41CX by Antonio Lagana

RPN Calc
Editor's Choice
📊 Productivity
4.6(43 ratings)
$7.99In-App Purchases
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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.

RLM-15CX#2

RLM-15CX by Ricardo Lira Matte

Advance Scientific Calculator
Strong Contender
📊 Productivity
4.3(13 ratings)
FreeIn-App Purchases
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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.

DB40X#3

DB40X by Christophe de Dinechin

High-precision RPL calculator
Worth Considering
📊 Productivity
4.7(7 ratings)
Free
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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.

More apps like RPN

4
WP 34s
WP 34s
WP 34s
by Pascal Meheut
Free

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
📊 Productivity
(28)
free
5
RPN 28x Calc
RPN 28x Calc
RPN 28x Calc
Math can be fun.
$6.99

A programmable scientific calculator offering a classic aesthetic with modern functionality. It features a dynamic stack display, customizable buttons, and support for multiple data types, making complex calculations intuitive and accessible.

Reverse Polish Notation (RPN) inputDynamic stack display with scrollingCustomizable buttons and programming
📊 Productivity
(30)
paid
6
RowSwift
RowSwift
RowSwift
Quick CSV Stats & Charts
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.

CSV file import from various sourcesColumn statistical summariesMultiple chart types (histogram, box-plot, scatter-plot, pie, line)
📊 Productivity
(1)
free
7
GEYER Y-Design App
GEYER Y-Design App
GEYER Y-Design App
Optimize Oscillator Circuits
Free
📊 Productivity
(0)
8
i41CX+
i41CX+
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
📊 Productivity
(104)
paid
9
DB48X
DB48X
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
📊 Productivity
(3)
paid
10
DB50X
DB50X
DB50X
Color version of DB48X
$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.

Arbitrary precision calculationsRPN and algebraic operationsComplex numbers, vectors, matrices
📊 Productivity
(8)
paid