TachoCamera vs Smart Resistor Calc

TachoCamera is an RPM meter and stroboscopic tachometer for iPhone. It measures RPM (revolutions per minute) and rotation speed without touching the machine: the iPhone camera works as a strobe, so you can read the exact RPM of motors, fans, turbines, pulleys and conveyors while the moving parts are frozen on your screen for visual inspection. No contact, no sensors, no additional hardware. Point the camera at any rotating or moving object, tune the frequency, and when the motion appears frozen — you've found the speed. Works equally well for rotating parts (motors, fans, turbines, pulleys) and for linear or repetitive motion (conveyor belts, production lines, packaging, printing). WHAT YOU CAN MEASURE • RPM of rotating parts: motors, fans, turbines, pulleys, shafts • Speed of linear and repetitive motion: conveyor belts, production lines, packaging, printing • Visual condition of moving machinery, frozen in the camera image KEY FEATURES • Stroboscopic measurement — freeze rotating or moving motion using the camera's frame rate as a strobe (no flash needed) to measure speed with precision • Auto RPM detection — let the app automatically detect rotation speed using the camera • Linear scan detector — measure the speed of objects passing through a detection line, ideal for conveyors and production lines • Machine library — save and organize your machines and components with QR codes for instant access • QR code scanner — scan machine QR codes to load saved settings instantly • Snapshot on save — automatically captures a photo when saving a measurement • Export — CSV, PDF reports and full backup DESIGNED FOR PROFESSIONALS TachoCamera is built for maintenance engineers, technicians, and production and quality staff who need reliable speed measurement in the field — whether it's a rotating motor or a fast-moving product on a line. TACHOCAMERA PRO Try all Pro features free for 7 days. Then choose: • Monthly — $2.99 • Yearly — $24.99 • Lifetime — $39.99, one-time purchase, no renewal (Prices in USD; local prices are shown in the App Store.) Subscriptions renew automatically unless cancelled at least 24 hours before the end of the current period, and are billed to your Apple ID account. Manage or cancel anytime in your App Store account settings. Lifetime is a one-time purchase and does not renew. Support: https://cyborapps.com/tachocamera/support/ Privacy Policy: https://cyborapps.com/tachocamera/privacy/ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Resistor Color Code Calculator - Fast, Simple and Accurate Quickly decode resistor color bands and calculate resistance with an easy-to-use resistor calculator. Identify resistor values in seconds without manual calculations. FEATURES * Supports 3, 4, 5 and 6 band resistors * Calculate resistance from resistor color bands * Identify resistance and tolerance values * Fast and accurate calculations * Simple and beginner-friendly interface * Works offline with no internet required * Free to use Perfect for electronics students, engineers, technicians, makers and hobbyists. Whether you are learning electronics, repairing circuits or working on an electronics project, this resistor color code calculator helps you read resistor values quickly and accurately. Decode resistor colors and find resistance values anytime, anywhere.