Complex RPN Calculator app icon

Apps Like Complex RPN Calculator for iPhone and iPad

Scientific RPN calculator with complex numbers.

The app is a scientific RPN calculator. It has a four-level stack and complex numbers as its native number type.

by John Coddington★ 3.924 ratingsUtilitiesFreeData updated 2026-09-10

Complex RPN Calculator screenshots

Ranked alternatives

Showing 201–220 of 1,000 ranked alternatives.

  1. Calctan app icon

    Calctan

    Jorge Lozada

    Calculate complex equations

    Perform complex calculations with scientific functions, trigonometry, and unit conversions. Customize themes, adjust display settings, and save frequently used formulas. Export results and share calculations directly.

    ★ 4.561 ratingsUtilitiesFreeData updated 2026-09-16
  2. iHP48 app icon

    iHP48

    Alexis Lorca

    Calculate, edit, and store equations

    Perform complex calculations, solve equations, and manage multiple tasks with a scientific calculator. Access a library of functions for engineering, math, and finance. Store and retrieve previous results. Switch between different calculation modes.

    ★ 4.6286 ratingsProductivityFreeData updated 2026-09-06
  3. CalcBox -All in One Calculator app icon

    CalcBox -All in One Calculator

    Realbyte Inc.

    Calculate, convert, and organize tasks

    Performs basic arithmetic and scientific calculations. Save equations and results for later. Unit Converter converts units for area, length, temperature, and more. Includes tools for currency exchange, date calculations, and percentage computations.

    ★ 4.8303 ratingsUtilitiesFreeData updated 2026-09-06
  1. AZ Calculator: AI & More app icon

    AZ Calculator: AI & More

    Gerardo Arellano

    Calculate, convert, and solve instantly

    Perform calculations with a scientific calculator, convert units, and use health tools like BMI and body fat calculators. Access financial calculators for loan and investment estimates.

    ★ 4.434 ratingsUtilitiesFreeData updated 2026-09-06
  2. Calculator for Pad app icon

    Calculator for Pad

    Beijing Free Sight Technology Co., Ltd

    Calculate without ads

    Perform calculations with both simple and scientific functions. View step-by-step solutions and process details. Display results in Chinese uppercase. Support high-resolution tablets. No ads. Compact size with no storage requirements.

    ★ 4.3316 ratingsUtilitiesFreeData updated 2026-09-22
  3. BCalc - a daily calculator app icon

    BCalc - a daily calculator

    煦 张

    Record, modify, and recalculate easily.

    The app records every calculation step, allowing users to modify any step and recalculate without re-entering data. It functions like a printing calculator with a paper tape history for clarity and ease of use.

    ★ 4.7245 ratingsUtilitiesFreeData updated 2026-10-16
  4. Calculator Advance app icon

    Calculator Advance

    Takahiro Iwatani

    Calculate, edit, and track numbers

    Perform complex calculations with formula display and editing. Convert currencies and cryptocurrencies. Customize buttons and layouts. Store and recall previous calculations. Adjust decimal places and number formats.

    ★ 4.870 ratingsUtilitiesFreeData updated 2026-09-11
  5. Duct Calculator app icon

    Duct Calculator

    Pheinex, LLC

    Calculate size and performance

    Calculate size for round or rectangular ductwork. Adjust airflow, diameter, width, or height using sliders. Enter values directly for precise measurements. Lock friction calculations for accurate results.

    ★ 4.5189 ratingsUtilities$19.99Data updated 2026-09-10
  6. Calculate: Advanced Calculator app icon

    Calculate: Advanced Calculator

    Joe Rickerby

    Expressions and simplify fractions

    Perform complex calculations with a scientific interface. Enter expressions in natural order. Simplify results with symbolic computation. Swipe to review previous calculations. Track history and reuse past entries.

    ★ 3.928 ratingsProductivity$1.99Data updated 2026-09-08
  7. Evaluate app icon

    Evaluate

    Aaron Rennow

    Calculate expressions like a calculator.

    The app allows users to type mathematical expressions similar to those on a graphing calculator. It computes complicated formulas, making complex calculations accessible.

    ★ 3.811 ratingsProductivityFreeData updated 2026-09-17
  8. My Graphing Calculator Lite app icon

    My Graphing Calculator Lite

    Gamal Saeed Shaalan

    Scientific calculator with powerful graphing functions.

    The app provides a scientific calculator with a history tape and graphing capabilities for up to four functions. Users can zoom, pan, and trace graphs, and view function values in a table.

    ★ 4.05 ratingsEducationFreeData updated 2026-10-10
  9. Duct Calculator Elite app icon

    Duct Calculator Elite

    Cyberprodigy LLC

    Calculate size, velocity, and pressure drop

    ™ lets users input airflow, velocity, or friction to determine size. Calculate pressure drop and flow rate. Input dimensions for custom shapes. Export results and save calculations.

    ★ 4.8234 ratingsUtilities$9.99Data updated 2026-10-29
  10. My Calculator - MyTools app icon

    My Calculator - MyTools

    iDaily Corp.

    Calculate, edit, and share equations

    Performs basic and scientific calculations. View and share calculation history. Switch between landscape and portrait modes. Choose from customizable themes to personalize the interface.

    ★ 4.7140 ratingsFinanceFreeData updated 2026-09-08
  11. UniCount scientific calculator app icon

    UniCount scientific calculator

    DANIIL VOIDILOV, IE

    Calculate, store, and solve equations

    Solves math problems with support for multi-story fractions, powers, and roots. Calculates trigonometric functions and complex numbers. Stores expressions and answers. Switches between basic, , and fraction modes.

    ★ 4.914 ratingsUtilitiesFreeData updated 2026-09-10
  12. Calculator· - Easy to Use app icon

    Calculator· - Easy to Use

    Netviking AB

    Calculate with big buttons and clear display

    A calculator with large buttons and a big display. Perform addition, subtraction, multiplication, and division. Features a Retina display for clear viewing.

    ★ 4.4219 ratingsUtilitiesFreeData updated 2026-09-09
  13. Calculator365: All-In-One Calc app icon

    Calculator365: All-In-One Calc

    晖明 甘

    Calculate, edit, and track expressions

    Advanced calculator with basic, scientific, and editable input features. View calculation history and use a widget for quick access.

    ★ 4.880 ratingsUtilitiesFreeData updated 2026-09-06
  14. Concrete Calculator Elite app icon

    Concrete Calculator Elite

    Cyberprodigy LLC

    Calculate volumes and quantities

    Helps estimate materials for various shapes. Users input dimensions to calculate volume and quantity. Features include slab, column, and post calculations. Saves results for future reference.

    ★ 4.9125 ratingsUtilities$6.99Data updated 2026-09-08
  15. i48 app icon

    i48

    Automagic Software Pty Ltd

    HP48GX calculator emulator for iPhone.

    The app emulates the HP48GX calculator for matrix calculations and function integration. Users can perform these tasks on an iPhone or iPod touch.

    ★ 3.4206 ratingsProductivityFreeData updated 2026-09-11
  16. Blue Tip Gratuity Calculator app icon

    Blue Tip Gratuity Calculator

    Daniel Pratt

    Calculate tips as you type

    Calculate tips as you type. Split bills with friends. Use 3D Touch shortcuts. Support split screen on iPad. Available in four languages. Works with Apple Watch and iPhone X. Simple design with minimal features.

    ★ 4.8105 ratingsUtilitiesFreeData updated 2026-09-10

How we rank alternatives

Apps are ranked by functional similarity, category fit, rating confidence, and popularity.