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 81–100 of 1,000 ranked alternatives.

  1. All in One Calculator app icon

    All in One Calculator

    Ramon Rivas

    Calculate, edit, and track equations

    Allows users to perform basic and advanced mathematical operations. It includes a sidebar and tab bar for navigation and data sharing. Users can drag and drop entries to create new windows or use the context menu to generate new windows.

    ★ 4.6185 ratingsProductivityFreeData updated 2026-09-08
  1. LXVII app icon

    LXVII

    Nick Tamburri

    HP-67 RPN calculator emulator for OS X.

    The app emulates the HP-67 RPN programmable calculator. It offers multiple active calculators, full memory visibility, and a paper tape register with various modes.

    ★ 0.00 ratingsUtilitiesFreeData updated 2026-09-20
  2. RPN-67 Pro app icon

    RPN-67 Pro

    Willy Kunz

    Programmable calculator for iOS

    Run programs and perform calculations using a simulated HP-67 calculator. Input numbers and commands via on-screen keys. Access built-in functions and mathematical operations. Load and execute stored programs from magnetic card files.

    ★ 4.36 ratingsProductivity$4.99Data updated 2026-09-08
  3. Big Button Calculator Pro Lite app icon

    Big Button Calculator Pro Lite

    Cider Software LLC

    Calculate with dual-line display and color themes

    Calculate with a dual-line display showing input and result simultaneously. Use percentage and backspace functions. Switch between 18 color themes. Enter multi-line equations. Automatically format scientific expressions.

    ★ 4.714,055 ratingsUtilitiesFreeData updated 2026-09-11
  4. Ncalc - Graphing Calculator 84 app icon

    Ncalc - Graphing Calculator 84

    Tran Duy

    Graph functions and trace curves

    Allows users to plot functions, polar, and parametric graphs. Users can edit equations in the graph editor and view graphs. Features include tracing, finding intersections and extrema, displaying derivatives, and adding tangents.

    ★ 4.65,015 ratingsEducationFreeData updated 2026-09-24
  5. GraphCalcPro2Go app icon

    GraphCalcPro2Go

    Starware Software LLC

    Calculate with precision and advanced functions

    Allows users to perform advanced scientific calculations with high precision and range. It supports standard and RPN input modes, built-in constants, and unit conversions. iCloud sync enables cross-device access to calculation history.

    ★ 4.642 ratingsUtilitiesFreeData updated 2026-09-10
  6. IntCalc app icon

    IntCalc

    James Preston

    Calculate in any number base

    An RPN calculator with stack display and base conversion. Users can switch between binary, octal, decimal, and hexadecimal modes. Each stack element can be viewed in any base or as ASCII.

    ★ 0.00 ratingsProductivityFreeData updated 2026-09-08
  7. Pascal: 3-in-1 Calculator app icon

    Pascal: 3-in-1 Calculator

    Andrew Wei

    Calculate, graph, code with precision

    Perform complex calculations with scientific, graphing, and programmer modes. View graphs and equations. Use the Today widget for quick access. Unlock advanced features with in- purchases. Reinstall to reset trial periods.

    ★ 4.023 ratingsProductivityFreeData updated 2026-09-09
  8. Financial Calculator + app icon

    Financial Calculator +

    Panoramic Software Inc.

    Calculate loans, track investments, plan retirement

    Calculate mortgage payments and generate amortization tables. Compute tips and loan details. Analyze time value of money, dates, percentage changes, and break-even points. Perform planning for home purchases, investments, and retirement.

    ★ 4.77 ratingsUtilities$1.99Data updated 2026-09-08
  9. Calculator Max app icon

    Calculator Max

    Pavel Kozarek

    Calculations made easy in one app.

    The app offers basic and scientific calculators with a history tape. Users can make notes and draw ideas on iPad.

    ★ 4.31,925 ratingsUtilitiesFreeData updated 2026-09-13
  10. Calculator! app icon

    Calculator!

    7th Gear

    Calculate, customize, and solve equations

    Calculator lets users perform basic and scientific calculations with over 30 functions. Switch between portrait and landscape modes. Customize leather color and background texture on iPad. Take notes or draw directly on the interface.

    ★ 4.84,275 ratingsUtilities$0.99Data updated 2026-10-13
  11. Basic Calculator: Classic Calc app icon

    Basic Calculator: Classic Calc

    MobArts Ltd

    Calculate, split, and customize

    Perform general calculations including addition, subtraction, multiplication, division, and square roots. Use memory functions for storage and retrieval. Apply thousands separators and handle numbers up to 60 digits.

    ★ 4.83,214 ratingsUtilitiesFreeData updated 2026-09-08
  12. Calculator HD Pro app icon

    Calculator HD Pro

    Cider Software LLC

    Calculate with dual-line display and multi-line input

    A with dual-line display showing input and result. Supports multi-line equations and tap-to-move cursor. Saves calculation history with timestamps and labels. Allows emailing calculations and swiping to review past entries.

    ★ 4.811,253 ratingsUtilities$9.99Data updated 2026-09-08
  13. Calculator ∞ app icon

    Calculator ∞

    An Truong

    Calculate, graph, and solve equations

    Solve equations, perform algebraic calculations, and graph functions. Support for multiple models including TI-83, TI-84, TI-89, Casio FX, and Sharp EL. Includes a scientific , fraction simplifier, and unit converter.

    ★ 4.76,388 ratingsEducation$5.99Data updated 2026-10-26

How we rank alternatives

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