Sensor Toolkit vs LC48 RPN Calculator

Sensor Toolkit turns your iPhone into a clean, practical set of everyday measurement tools. Use it when you need a level, compass, vibration meter, magnetometer, heading reader, sound meter, ruler, protractor, timer, or metronome without switching between separate apps. Built for quick checks, field work, DIY tasks, practice rooms, and daily utility, Sensor Toolkit keeps each tool focused on the measurement in front of you. Key features: • 10 tools in one app Level, Compass, Vibration, Magnetometer, Heading, Sound Meter, Ruler, Protractor, Timer, and Metronome. • Real-time sensor readings Clear visual feedback helps you read tilt, direction, sound level, vibration, magnetic field strength, angles, time, and tempo at a glance. • No ads while measuring Measurement screens stay clean, focused, and distraction-free. • Sound and vibration logs View live measurement changes over time and save chart images when you need a record. • Practical instrument-style design Dark, high-contrast screens make readings easy to check quickly. • Privacy-conscious permissions Permissions are requested only when a tool needs them. Microphone audio is used for sound level measurement and is not saved by the app. Sensor Toolkit is designed for practical reference measurements. Results depend on your device sensors, calibration, and environment, so it is not a replacement for certified professional measuring equipment.

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.