RPN Calculus app icon

Apps Like RPN Calculus for iPhone and iPad

Scientific RPN calculator for iPad.

The app performs calculations with up to 15 digits of precision and supports a number range from -1E127 to 1E127. It includes a database of over 120 scientific constants that users can extend.

by Thomas Braun★ 4.01 ratingsUtilities$1.99Data updated 2026-09-14

RPN Calculus screenshots

Ranked alternatives

Showing 61–80 of 1,000 ranked alternatives.

  1. 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
  2. Crimson Calculator 41cx app icon

    Crimson Calculator 41cx

    Crimson Research, Inc.

    Program and store calculations

    A programmable RPN with continuous memory allows users to access the stack and LASTx using STO and RCL commands. It supports 200-2000 lines of program memory and label addressing with strings.

    ★ 5.03 ratingsEducation$4.99Data updated 2026-09-08
  1. r.Calc app icon

    r.Calc

    Nicolas Jorand

    A simple calculator for daily uses.

    The app provides a calculator with a four-level visible stack and a total of one hundred positions. It includes operations for plus, minus, multiply, divide, opposite, and inverse, with keyboard errors notified by vibration.

    ★ 4.03 ratingsUtilities$0.99Data updated 2026-09-10
  2. Scientific Calculator Premium app icon

    Scientific Calculator Premium

    Nixus Development

    Calculate, graph, and store equations

    Perform complex calculations with root, power, trigonometric, and logarithmic functions. Calculate factorials and double factorials. Draw graphs, use four memory blocks, insert constants, and make notes.

    ★ 4.5286 ratingsUtilitiesFreeData updated 2026-09-08
  3. Calculator : Scientific Calculator & converter app icon

    Calculator : Scientific Calculator & converter

    CAT VIET SOFTWARE DEVELOPMENT & MEDIA JSC

    Calculate with formulas and units

    Calculate using functions including sin, cos, tan, and their inverses. Convert units with 136 converters. Access daily updated currency exchange rates. Perform algebraic calculations with 800+ formulas. Switch between degrees, radians, and grads.

    ★ 5.03 ratingsUtilitiesFreeData updated 2026-09-13
  4. Calculator SC-323PU app icon

    Calculator SC-323PU

    Thomas Oellinger

    Calculate, edit, and track equations

    The provides scientific calculations, unit conversion, and logic-based computations. Users can switch between modes. It includes a built-in manual for operation guidance. Perform n-base conversions and unit-based calculations.

    ★ 4.7118 ratingsUtilities$3.99Data updated 2026-09-08
  5. 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
  6. DB50X app icon

    DB50X

    Christophe de Dinechin

    ★ 5.08 ratingsProductivity$9.99Data updated 2026-10-13
  7. 15C Scientific Calculator app icon

    15C Scientific Calculator

    Vicinno Soft LLC

    Calculate with precise RPN math

    Emulates HP 15C RPN functionality with precise mathematical calculations. Users can solve equations, perform numerical integration, handle complex numbers, and execute matrix operations. It supports root finding and hyperbolic functions.

    ★ 0.00 ratingsUtilities$14.99Data updated 2026-09-08
  8. 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
  9. Solvo: AI Homework Helper app icon

    Solvo: AI Homework Helper

    AIBY Incorporated

    Solve math problems step by step

    Study flashcards with customizable questions and answers. Review progress with statistics and spaced repetition. Create and share flashcards with classmates. Solve math problems with step-by-step explanations.

    ★ 4.65,248 ratingsEducationFreeData updated 2026-09-06
  10. Symbolab - AI Math Solver App app icon

    Symbolab - AI Math Solver App

    Eqsquest Ltd

    Solve problems with step-by-step guidance

    Solve problems by typing or snapping a photo. Get step-by-step solutions for pre-algebra, calculus, trigonometry, and more. Calculate derivatives, integrals, equations, and fractions. Graph functions and analyze results.

    ★ 4.626,156 ratingsEducationFreeData updated 2026-09-09
  11. 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

How we rank alternatives

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