37+ similar apps compared and reviewed
Whether you want more options like SpicyRPN or a completely different take on the same concept, our curated list of 37+ similar apps has you covered. Updated for 2026 with the latest ratings and comparisons.
This scientific and financial calculator offers RPN input and a wide range of functions including complex numbers, equation solving, and statistical analysis. It also supports basic operations on Apple Watch.
This utility app functions as a Reverse Polish Notation calculator. It handles complex numbers and utilizes extended precision for all calculations, offering an unlimited stack depth and an undo feature for up to 10 operations.
This app is a photo-realistic simulation of the classic HP-25 scientific calculator. It offers advanced programming features, a vast function library, and modern enhancements for enhanced usability on iOS devices.
This scientific calculator offers a comprehensive suite of tools for finance, business, statistics, and complex scientific calculations. It emulates a classic calculator while leveraging modern iOS device capabilities for ease of use and advanced functions.
This app faithfully recreates the HP-25C Programmable Scientific Calculator from 1976. It offers RPN input, a 10-digit LED display, and extensive mathematical functions. Users can program it with up to 99 steps and share programs via various methods.
This calculator app replicates the functionality of traditional HP scientific calculators for iOS devices. It offers a four-level stack, multiple display options, and BCD math for precise calculations. Features include a "paper" tape for recording calculations and ten memory storage locations.
A powerful calculator app for students, engineers, and scientists. It handles complex numbers, symbolic expressions, unit conversions, and matrix operations, with advanced plotting and programming capabilities.
This app offers a highly accurate simulation of the classic HP-29C programmable scientific calculator. It features RPN input, extensive storage registers, and a wide range of mathematical and statistical functions. Users can program complex calculations, import/export programs, and view detailed program information.
