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
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.
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.
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.
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.
Perform complex calculations using 12 built-in calculators including scientific, financial, and unit conversion tools. Input formulas with three modes: standard, string, and RPN.
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.
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.
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.
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.
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.
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.
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.
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.
The app offers scientific calculator functions and RPN mode for fast calculations. Its uncluttered interface uses the RPN system favored by engineers and scientists.
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.
The app offers a free basic and scientific calculator with an intuitive interface. It displays equations and results simultaneously, supporting fractions and percentages.
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.
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.
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.