Reverse polish notation calculator for iPhone, iPad, and Apple Watch
The app provides a reverse polish notation calculator for iPhone, iPad, and Apple Watch. It offers a clean interface with essential functions for quick calculations.
by James Mattis★ 4.45 ratingsUtilities$0.99Data updated 2026-09-09
Perform complex calculations with scientific, engineering, and hexadecimal modes. Use RPN and multi-line display. Convert units and access constants. Undo and redo actions. Sync with Apple Watch for on-the-go calculations.
Perform complex number calculations and trigonometric functions. Handle matrix operations and numerical root finding. Calculate integrals and statistical values including linear regression. Write and execute custom programs. No ads or in- purchases.
Perform complex calculations using RPN input. Access advanced mathematical functions and programming capabilities. Store and recall values with memory registers. Use a redesigned interface for enhanced usability.
Perform calculations using reverse Polish notation. Swipe to undo or redo operations. Access a 100-entry stack and 6 memory buttons. View large, easy-to-read displays. Save state on exit. Supports scientific functions and multiple undo/redo levels.
Perform complex calculations using 10 built-in calculators including scientific, financial, and unit conversion tools. Access 10 financial worksheets for budgeting, loans, and investments. Save and share calculation results.
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.
Simulates a retro scientific calculator with RPN input. Features a 10-digit LED display, four stack registers, and a storage register. Includes math, trigonometric, and logarithmic functions. Displays results in polar/rectangular formats.
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.
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.