LC48 RPN Calculator

LC48 is a native RPN scientific calculator for iPhone and iPad, designed for engineers, students, scientists, and anyone who prefers stack-based calculation. Work with a clear multi-level stack, an editable command line, and a classic calculator keyboard. Choose a pixel LCD or modern text display, inspect stack objects, and keep your calculator state between sessions. Highlights: • 12-digit decimal real and complex calculations • Matrix arithmetic and decompositions, polynomial tools, and numerical equation solving • Symbolic expressions, differentiation, integration, units, and physical constants • Statistics, regression, probability distributions, and scientific equation worksheets • Time value of money, cash flow, amortization, bond, and depreciation tools • Function, polar, parametric, statistical, and advanced graph views with zoom and trace • Programmable User RPL with interactive input, waits, collection operations, and debugging • Named variables, directory objects, virtual memory ports, backup inspection, and JSON state export and restore • Custom menus, USER keys, VoiceOver labels, optional haptics, and adaptive iPhone and iPad layouts LC48 is inspired by the HP 48GX and independently implemented. It does not contain HP firmware or run original HP binary libraries. LC48 works locally on your device. It requires no account, contains no advertising, and does not track or collect personal data. About & Privacy provides privacy information and support links.