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 2026-11-01

i41CX screenshots

Ranked alternatives

Showing 21–40 of 1,000 ranked alternatives.

  1. 11C Scientific Calculator app icon

    11C Scientific Calculator

    Vicinno Soft LLC

    Calculate with RPN and functions

    Perform complex calculations using RPN entry system. Access hyperbolic and inverse hyperbolic trig functions. Calculate probability, factorials, and percentages. Support absolute, integer, and fractional values. Generate random numbers.

    ★ 4.2298 ratingsUtilities$5.99Data updated 2026-10-24
  2. Calculator - Pad Edition app icon

    Calculator - Pad Edition

    Ratha Sou

    Calculate in portrait, science in landscape

    Perform basic calculations in portrait mode and scientific calculations in landscape. Use root, power, factorial, exponential, division, logarithm, and trigonometric functions. Features a flat UI design similar to built-in iOS apps.

    ★ 4.7357,788 ratingsUtilitiesFreeData updated 2026-09-08
  3. Calculator HD Pro Lite app icon

    Calculator HD Pro Lite

    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 previous entries.

    ★ 4.651,412 ratingsUtilitiesFreeData updated 2026-09-08
  1. Calculator with History + app icon

    Calculator with History +

    Beijing Free Calculator Technology Co., Ltd.

    Calculate and track financial formulas

    Perform calculations a scientific featuring pi, exponents, square root, negative numbers, and logarithms. View calculation and adjust decimal places or use thousands separators. Customize keyboard colors and sounds.

    ★ 4.725,089 ratingsFinanceFreeData updated 2026-09-17
  2. ▸ Calculator + app icon

    ▸ Calculator +

    CAT VIET SOFTWARE DEVELOPMENT & MEDIA JSC

    Calculate, convert, and solve equations

    Perform complex calculations using 12 built-in calculators including scientific, financial, and unit conversion tools. Input formulas with three modes: standard, string, and RPN.

    ★ 4.7899 ratingsUtilities$1.99Data updated 2026-09-08
  3. RPN-67 NP app icon

    RPN-67 NP

    Willy Kunz

    Simulate HP-67 calculator functions

    Load and run 25 original programs from the HP-67 calculator. Perform calculations using reverse Polish notation. Access a wide range of mathematical and scientific functions. Store and retrieve programs using magnetic card simulation.

    ★ 4.04 ratingsProductivityFreeData updated 2026-09-08
  4. Calculator⁼ app icon

    Calculator⁼

    Impala Studios B.V.

    Calculate, edit, and track results

    Calculator provides basic and scientific calculation functions. Users can access a history of past calculations for review or reuse. It includes a live currency converter for exchange rate checks.

    ★ 4.6358,634 ratingsUtilitiesFreeData updated 2026-09-08
  5. Calculator for iPad₊ app icon

    Calculator for iPad₊

    Impala Studios B.V.

    Calculate and share equations instantly

    Perform complex mathematical calculations using scientific functions and simple arithmetic. Calculate percentages, taxes, and financial figures. Save and share results with others. Syncs with iPad and iPhone.

    ★ 4.5126,019 ratingsUtilitiesFreeData updated 2026-09-11
  6. 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
  7. 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
  8. 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
  9. 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
  10. 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
  11. RPN Calculator free app icon

    RPN Calculator free

    Benjamin Pisano

    Scientific calculator with RPN mode.

    The app offers scientific calculator functions and RPN mode for fast calculations. Its uncluttered interface uses the RPN system favored by engineers and scientists.

    ★ 1.01 ratingsUtilitiesFreeData updated 2026-10-04
  12. WP 34s app icon

    WP 34s

    Pascal Meheut

    Calculate, program, and store equations

    Perform complex calculations using RPN input. Access programmer functions for base conversions and bitwise operations. Use fraction mode and probability distributions. Track time with a stopwatch. Store and retrieve custom programs.

    ★ 4.729 ratingsProductivityFreeData updated 2026-09-08
  13. Calculator + app icon

    Calculator +

    Sarah Ragab

    Simple, usable, and beautiful calculator.

    The app offers a free basic and scientific calculator with an intuitive interface. It displays equations and results simultaneously, supporting fractions and percentages.

    ★ 4.610,075 ratingsUtilitiesFreeData updated 2026-09-13
  14. PCalc Lite app icon

    PCalc Lite

    TLA Systems Ltd.

    Calculate with advanced scientific functions

    Perform complex calculations with support for hexadecimal, octal, and binary. Use RPN mode and multi-line display. Access unit conversions, constants, and scientific notation. View a paper tape and use multiple undo/redo functions.

    ★ 4.4214 ratingsUtilitiesFreeData updated 2026-09-08
  15. Calculator Air: AI Math Solver app icon

    Calculator Air: AI Math Solver

    AIR APPS SYSTEMS, UNIPESSOAL, LDA

    Solve problems instantly

    Solve problems with a scientific supporting arithmetic to calculus. Use photo to scan and solve equations. Access an AI homework helper for step-by-step solutions. Perform unit conversions and function calculations.

    ★ 4.783,588 ratingsUtilitiesFreeData updated 2026-09-11
  16. MathU RPN Calc app icon

    MathU RPN Calc

    Creative Creek, LLC

    Calculate with RPN and 96 functions

    Perform complex calculations using Reverse Polish Notation. Access over 96 functions including financial, scientific, and engineering operations. Store and recall values. Switch between decimal and hexadecimal modes.

    ★ 5.0135 ratingsFinance$24.99Data updated 2026-09-08

How we rank alternatives

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