Best apps like RPN Calculator DeepStack

25+ similar apps compared and reviewed

3.9 avg rating
10 free apps
Updated October 2026

RPN Calculator DeepStack is great, but it's not the only option. Explore 25+ similar apps for iPhone and iPad, each reviewed and rated by real users. Find free alternatives, premium upgrades, and hidden gems.

Top Alternatives to RPN Calculator DeepStack

4.9(7 ratings)
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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.

More apps like RPN Calculator DeepStack

4
Halcyon Calc Lite
Halcyon Calc Lite
Halcyon Calc Lite
by Halcyon Touch Software
Free

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
๐Ÿ”ง Utilities
(15)
free with in-app purchases
5
RePNCalc - RPN Calculator Pro
RePNCalc - RPN Calculator Pro
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
๐Ÿ”ง Utilities
(1)
free with in-app purchases
6
RPNPro
RPNPro
RPNPro
by Felix Meier
Free

This calculator utilizes Reverse Polish Notation (RPN) for input, mirroring the functionality of classic HP calculators. It features a four-level stack with X, Y, Z, and T registers, displaying the X register in decimal, hexadecimal, and binary.

Reverse Polish Notation (RPN) inputFour-level stack (X, Y, Z, T registers)Decimal, hexadecimal, and binary display
๐Ÿ”ง Utilities
(1)
free
7
Dozecal
Dozecal
Dozecal
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
๐Ÿ”ง Utilities
(4)
free
8
Complex RPN Calculator
Complex RPN Calculator
Complex RPN Calculator
Complex Numbers RPN Calculator
Free

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
๐Ÿ”ง Utilities
(22)
free
9
ThetaCalc
ThetaCalc
ThetaCalc
by Felix Stehli
Free

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
๐Ÿ”ง Utilities
(4)
free
10
Calculator 3 in 1
Calculator 3 in 1
Calculator 3 in 1
by PPCLINK Software
Free

This versatile calculator app offers standard, scientific, and RPN modes with high precision and complex number support. It includes advanced functions, expression history, and a constants library for various fields.

Standard, String, and RPN calculation modesHigh precision up to 31 digitsComplex number support
๐Ÿ”ง Utilities
(5)
free