Physics Toolbox Magnetometer vs ForeignSail

Measure, visualize, and record magnetic fields with precision — right from your iPhone. Physics Toolbox Magnetometer displays the magnetic field vector in x, y, and z dimensions along with total magnitude in microteslas (µT) or gauss, giving you the data you need for serious lab work or casual exploration. Three ways to view your data: - Chart — real-time graph with toggleable axes, adjustable line width, and fullscreen mode - Digital — large numeric readout for quick at-a-glance measurements - Compass — live heading with True North and Magnetic North display Built for the lab and the field: - Record and export data as CSV for analysis in other software - Adjustable sample rate from 1 to 100 Hz - Signal filters to reduce noise - Detects permanent magnets, electromagnetic fields, and background geomagnetic field Classroom-ready experiments: The magnetometer is well-suited for determining the inverse-square law for a point-source magnet, measuring the magnetic field produced by a solenoid, or capturing the periodic field variations of audio speakers and magnetic plate stirrers. Whether you are a physics student, teacher, engineer, or curious mind, Physics Toolbox Magnetometer turns your device into a capable scientific instrument.

ForeignSail is the ultimate nautical terminology companion for sailors, boaters, and maritime professionals navigating international waters. Whether you're docking in a French marina, buying equipment in Spain, or sailing with an Italian crew, ForeignSail helps you communicate with confidence. TRANSLATE Search over 1,000 nautical terms instantly across English, French, Spanish, and Italian. Each term includes definitions in all four languages so you always understand the full meaning, not just the word. IDENTIFY Point your camera at any piece of boat equipment and our AI will identify it and find the matching nautical term in all four languages. Works with cleats, winches, blocks, lines, and hundreds of other marine items. CONVERT Built-in nautical unit converter for the measurements sailors use every day: • Knots, km/h, mph, m/s • Nautical miles, kilometers, meters, feet, fathoms, inches • Kilograms, pounds, long tons • Liters, US gallons, imperial gallons • Pressure: hPa, inches Hg • Temperature: Celsius, Fahrenheit OFFLINE ACCESS Premium subscribers can access the full term database offline — perfect when you're at sea without a signal. GO PREMIUM Upgrade to remove ads and unlock full offline access. One-time lifetime purchase available. Built by sailors, for sailors.