Sensor Viewer vs VibraScope

Visualise the data from 3 of your phone's sensors And adjust the sensitivity of the sensors to match the sounds, vibrations or magnetic fields you're measuring For sounds: See a sound wave for all sounds picked up by the microphone For Vibrations: See 3 line graphs showing the movements of the phone, 1 line per dimension (up/down, left/right, forwards/backwards) For Magnetic Fields: See a graph of the magnetic field your phone can detect, even if that's just your speakers or the batteries in some of your other devices Supports Light Mode / Dark Mode Supports Dynamic Text Sizing Supports English, French, Spanish, German Optional one-time in-app purchase available to remove ads permanently. Purchases can be restored on supported devices using the same Apple ID or Optional auto-renewing subscription available to remove ads. Subscription automatically renews unless cancelled at least 24 hours before the end of the current period. You can manage or cancel your subscription in your App Store account settings. Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://salisburyapps.co.uk/privacy-policy-sensor-viewer/

VibraScope turns your phone into a vibration meter and seismograph — measure shaking, engines, appliances and floors with the motion sensor already in your pocket. It looks and feels like a classic paper chart recorder: a live analog needle gauge, three seismograph-style ink traces (X/Y/Z), and readouts stamped like an instrument plate. Warm paper theme by day, amber night-instrument theme in the dark. MEASURE WITHOUT INTERRUPTIONS • No full-screen ads on the measuring screen — your reading never gets wiped mid-measurement • Remove ads with a single one-time purchase, forever WHAT YOU GET • Live analog needle gauge with color-coded intensity zones • 3-axis seismograph traces or a single magnitude trace — your choice • RMS, peak and session-max acceleration in m/s² or g • Estimated shaking intensity (MMI scale, I–XII) • Dominant vibration frequency in Hz • Zero calibration and hold • Save measurements with title and notes, review them anytime • Export charts as images (high-resolution available) or data as CSV • Works on both phones and tablets • 8 languages Everything is measured and stored on your device — no account, no sign-up, and the motion sensor needs no permission at all. Great for checking washing machines and engines, monitoring workshop tools, testing floors and shelves, classroom physics, or simply seeing every little tremor around you drawn in ink. Note: readings are estimates from consumer phone sensors and do not replace calibrated instruments or official seismic monitoring.