i41CX app icon

Apps Like i41CX for iPhone and iPad

Calculate with RPN and scientific functions

Perform complex calculations using RPN input. Access a wide range of scientific and programming functions. Customize skins and adjust key feedback settings. Input and edit equations with precise control. Save and retrieve programs for repeated use.

by Antonio Lagana★ 4.747 ratingsProductivity$7.99Data updated 2026-11-09

i41CX screenshots

Ranked alternatives

Showing 81–100 of 1,000 ranked alternatives.

  1. RPN-45 HD app icon

    RPN-45 HD

    Willy Kunz

    Calculate like a scientific calculator

    Simulate the HP-45 scientific calculator with photo-realistic visuals and animated keys. Perform all original functions and operations. Access a secret timer for 12-hour or 100-hour intervals. Switch to Super-45 mode for enhanced capabilities.

    ★ 4.86 ratingsProductivity$2.99Data updated 2026-09-08
  2. RPN-65 Pro app icon

    RPN-65 Pro

    Willy Kunz

    Simulate HP-65 calculator on iPad

    Simulate a programmable calculator with magnetic card input. Run original HP-65 programs. View detailed manuals and technical specifications. Adjust calculator settings and interface layouts. Export calculations and program data.

    ★ 4.04 ratingsProductivity$3.99Data updated 2026-09-10
  1. NumWorks Graphing Calculator app icon

    NumWorks Graphing Calculator

    NumWorks

    Calculate, graph, and explore math problems

    Solve math problems with , algebra, and calculus functions. Input equations, plot graphs, and analyze results. Store and recall previous calculations. Sync with calculators for seamless data transfer.

    ★ 4.498 ratingsEducationFreeData updated 2026-09-17
  2. RPN 28x Calc app icon

    RPN 28x Calc

    Eric Roller

    Enter expressions and calculate results

    Is a programmable scientific calculator with a dynamic stack display. Users can input numbers and operations using reverse-polish notation. The display expands automatically as more values are added, and users can swipe to view additional lines.

    ★ 5.034 ratingsProductivity$6.99Data updated 2026-09-08
  3. Calculator # Converter app icon

    Calculator # Converter

    CAT VIET SOFTWARE DEVELOPMENT & MEDIA JSC

    Calculations made simpler than ever before.

    The app offers a scientific calculator with over 800 formulas. It includes currency and unit converters, date and time functions, and finance tools.

    ★ 4.370 ratingsUtilitiesFreeData updated 2026-09-25
  4. calculator HD⁻ app icon

    calculator HD⁻

    Beijing four time ledo Technology Co., Ltd.

    Record calculations, edit steps, check results

    Simplify calculations with a clean interface showing equations and results simultaneously. Record and edit operations. Access scientific functions. Choose from multiple themes. Subscribe for quarterly membership at ¥18.

    ★ 4.52,500 ratingsUtilitiesFreeData updated 2026-09-20
  5. RPN-65 SD app icon

    RPN-65 SD

    Willy Kunz

    Simulate HP-65 calculator

    Simulate a programmable calculator with input. Run HP-65 programs, store and retrieve data from magnetic cards. View and edit calculator memory. Access historical documentation and user guides.

    ★ 5.08 ratingsProductivity$2.99Data updated 2026-10-29
  6. Haseba Calculator app icon

    Haseba Calculator

    Ahmad Almazeedi

    Calculate, voice input, copy, paste

    Perform calculations using a scientific or voice input. Access calculation history by swiping down. Copy and paste values. Switch between light and dark themes. Enable larger buttons for easier use.

    ★ 4.63,811 ratingsUtilitiesFreeData updated 2026-09-11
  7. OneCalc: All-in-one Calculator app icon

    OneCalc: All-in-one Calculator

    tasser gyati

    Calculate, convert, and solve equations

    Offers standard and advanced math functions including percent, negative sign, memory, brackets, and history. It includes trigonometry, roots, exponents, and logarithms.

    ★ 4.65,075 ratingsProductivityFreeData updated 2026-09-14
  8. Calc Pro - The Top Calculator app icon

    Calc Pro - The Top Calculator

    Panoramic Software Inc.

    Calculate and manage your finances

    Perform complex calculations using ten built-in calculators. Access ten financial worksheets for budgeting, loans, and investments. Input formulas, view results, and save calculations. Export data as PDF or text. Switch between light and dark modes.

    ★ 4.7358 ratingsUtilities$7.99Data updated 2026-09-08
  9. RPN-38 CX app icon

    RPN-38 CX

    Willy Kunz

    Simulate HP-38C calculator operations

    Simulate the HP-38C calculator with real-time input and output. Perform financial calculations, program custom functions, and use reverse Polish notation. Supports HP-12C compatibility for most operations.

    ★ 5.06 ratingsProductivity$1.99Data updated 2026-09-10
  10. GraphNCalc83 app icon

    GraphNCalc83

    Ernest Brock

    Calculate, graph, and edit math problems

    Solve math problems with natural textbook input and fraction support. Trace graphs with touch. Zoom using pinch gestures. Tap for regression analysis. Swipe to scroll through calculation history and matrices. Access help via the ? key.

    ★ 4.94,042 ratingsEducation$12.99Data updated 2026-11-07
  11. Calzy app icon

    Calzy

    Raja Vijayaraman

    Calculate, edit, and organize equations

    Perform calculations with a clean interface. Store and reuse numbers using the Memory Area. Bookmark equations for quick access. Drag and drop values between calculations. Switch between scientific and basic modes. Export results as text or image.

    ★ 4.71,942 ratingsProductivity$1.99Data updated 2026-11-09
  12. Calculator Easy HD app icon

    Calculator Easy HD

    良峰 侯

    Calculate, copy, and send results

    Perform calculations with a live voice input feature. Use an ergonomic key layout with an extra large "+" key and backspace function. Copy and send results via email. Support Retina displays on all iPads and iPhones. Enable Dark Mode.

    ★ 4.81,213 ratingsUtilities$0.99Data updated 2026-09-08
  13. Panecal Scientific Calculator app icon

    Panecal Scientific Calculator

    Noriyasu Kutsuzawa

    Enter formulas and check calculations

    Is a that lets users input and edit formulas with a live display. It supports formula reuse, variable memory, and cursor navigation for precise editing. Users can check formulas for errors and adjust values efficiently.

    ★ 4.81,952 ratingsUtilitiesFreeData updated 2026-09-08
  14. Real Estate Master IIIx app icon

    Real Estate Master IIIx

    Calculated Industries, Inc.

    Calculate mortgage payments on the go

    Calculate mortgage payments, estimate closing costs, and determine loan amounts. Input property details and interest rates. Generate reports and save calculations. Share results via email or cloud storage. Sync data across devices.

    ★ 4.91,393 ratingsFinanceFreeData updated 2026-09-08

How we rank alternatives

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