TwinMind vs Magnetometer+ Metal Detector

TwinMind captures everything you say and hear in your conversations, meetings, and lectures. It automatically transcribes, summarizes, and proactively offers suggestions, so you never forget anything and always know what's next. The app builds your Second Brain by capturing your life. Every capture builds TwinMind in the background, all day without draining your battery. It works in any of 140+ languages. The longer you use TwinMind, the more it can do for you. ASK YOUR LIFE ANYTHING Whatever the question, it answers from your conversations, email, and the web. One subscription covers pro ChatGPT, Claude and Gemini like Sol, Opus, Sonnet & Fable. YOUR SECOND BRAIN People and memorable moments get their own pages, updating daily. Days of captures read like an encyclopedia of your life. PREPARED BEFORE YOU ASK Your daily digest lands every morning with yesterday's highlights and today's priorities. Connect your calendar and email to get briefed on what's next, with replies already drafted. TURN CONVERSATIONS INTO CREATIONS Connect TwinMind to Claude or ChatGPT over MCP, and your memories become reports, prototypes, drafts, or anything you can describe. PRIVATE BY DESIGN Audio is deleted after transcription by default. If you turn on Save Audio, we store it until you delete it. When you record offline, audio stays on your device until it is transcribed. How it works: • Tap Capture on your phone, watch, or laptop • Put the phone away; it transcribes in the background all day • Every capture becomes a memory, with the summary, action items, and transcript • Your second brain fills itself in with people, projects, and moments • Your daily digest arrives each morning with yesterday's highlights and your priorities • Chat across memories, with your email, calendar, and digital life included • Connect Claude or ChatGPT and turn memories into creations Try TwinMind on your next conversation. It's free, with unlimited transcription. Upgrade to Pro or Max for advanced features & the latest flagship models. Supported platforms: Available on iPhone, iPad, Apple Watch, and Mac. Top supported languages: English, Chinese (Simplified), Hindi (हिन्दी), Spanish (Español), French (Français), Arabic (العربية), Bengali (বাংলা), Portuguese (Português), Russian (Русский), Urdu (اردو), Indonesian (Bahasa Indonesia), German (Deutsch), Japanese (日本語), Nigerian Pidgin, Marathi (मराठी), Telugu (తెలుగు), Turkish (Türkçe), Tamil (தமிழ்), Cantonese (廣東話), Vietnamese (Tiếng Việt) Terms of Service: https://twinmind.com/terms-of-service/ Privacy Policy: https://twinmind.com/privacy-policy/

Magnetometer+ turns your iPhone's magnetic sensor into a metal detector and stud finder for iron and steel hidden in walls, floors and furniture, and shows the magnetic field around you in µT. ▶ WHAT IT FINDS — AND WHAT IT DOES NOT It detects ferrous metal: screws and nails in studs and joists, steel pipes, rebar, hinges, brackets and door strikes. The range is a few centimetres, so hold the phone against the surface and sweep slowly. It cannot detect gold, silver, copper, aluminium, wood or plastic. Those materials are not magnetic, and no phone sensor can find them. If you are looking for buried coins or copper wiring, this is not the tool. ▶ CALIBRATES FROM YOUR HAND Every phone's magnetic sensor carries a large built-in offset from its own speaker and battery magnets. Magnetometer+ learns that offset while you turn the phone, so tilting the phone does not look like metal. When the meter opens, a progress bar shows how far calibration has come: turn the phone slowly in every direction, and when the bar is full the reading goes live with a short vibration. Zero here re-learns it wherever you are. ▶ THREE METER MODES • Auto — a radial gauge of the field deviation • Earth Field — total field strength with a latitude band (low, normal, elevated, high) • Metal Detector — deviation from the background field with an intensity verdict, plus optional vibration pulses that quicken as you get closer ▶ SCANNER AND STUD FINDER The Scanner tab has a metal scanner for sweeping a surface and a Stud Finder that marks the strongest point as you slide the phone flat across a wall. It finds the nails and screws that hold drywall to the studs; it does not see the wood itself. ▶ COMPASS A compass with magnetic north or true north and the local declination. ▶ LIVE DATA • X, Y and Z field components on a live chart • Min, average, max and peak with elapsed time • Sensitivity from 0.5x to 2.0x • µT, mT and Gauss units ▶ HISTORY AND EXPORT • Readings are saved with a 7-day trend and a plain-language comparison • Favourites and side-by-side comparison of two readings • Continuous one-second logging with CSV export • Share a reading as an image, optional GPS tag on saved readings • Statistics report, unlocked for 24 hours by watching a short ad USEFUL FOR DIY AND RENOVATION · FINDING STUDS AND JOISTS · CHECKING FOR REBAR OR PIPES BEFORE DRILLING · PHYSICS CLASS AND MAGNET EXPERIMENTS