Seismometer+ vs MeterWorks Vibrometer

Seismometer - Real-Time Vibration Analysis Measure everything that vibrates, shakes or moves. Or why not an actual earthquake? Transform your device into a powerful seismometer! This app uses precise acceleration data from your device to measure vibrations and display them graphically, just like a classic seismograph. Whether you're a science enthusiast or just curious about the world around you, this app makes vibration tracking simple and intuitive. Features: * Real-Time Graphs: Visualize X, Y, and Z-axis accelerations in real time with a classic seismograph-style display. *Cumulative Analysis: View the overall vibration intensity with a combined graph for long-term tracking. * Adjustable Recording Intervals: Set custom time intervals for long-term data recording to suit your needs. * Dark Mode: Enjoy a sleek, modern design optimized for dark mode, perfect for low-light environments. * Customizable Settings: Tailor the app to your preferences, from graph update rates to display sensitivity. Perfect For: Detecting subtle vibrations and tremors. Understanding the movement and stability of surfaces. Science experiments, education, and general curiosity. Download Seismometer today and explore the unseen vibrations of your world!

Your iPhone is a surprisingly capable vibration meter — when the app is honest about it. MeterWorks Vibrometer measures, records, and hands you your raw data: no subscription, no ads, no account, no tracking. MEASURE • Live readout with a big RMS value and a smooth real-time graph • All three axes plus magnitude, 100 Hz sampling, m/s² or g • Zero adjustment to cancel sensor offset before you measure • Selectable time window (10/30/60 s) and coupling tips for clean measurements RECORD & ANALYZE • Recordings with key metrics: RMS, peak, peak-to-peak, crest factor • Zoom, pan, and cursor in the recording graph — stats recalculated for the visible range • Pro: FFT spectrum with a peak list (dominant frequencies, rpm hint) YOUR DATA IS YOURS • Free: PNG export of any graph • Pro: clean CSV export of the full raw time series — spreadsheet-ready (comma or semicolon style), shared in seconds via Mail, Files, or AirDrop • Pro: multi-page PDF report with a statistics matrix across all axes, every graph, and the spectra — plus device info and a methodology footer FREE VS. PRO — NO SURPRISES The free version is a real instrument, not a teaser: live measurement, three recordings of 10 seconds each, full metrics, PNG export. The Pro unlock is a single one-time purchase — no subscription, ever. It removes the limits: unlimited recordings of any length, CSV raw-data export, FFT analysis, and the full PDF report. Buy it once, keep it forever, including future Pro features. WHAT THIS APP CANNOT DO — HONESTLY iPhone sensors measure reliably from roughly 0.1 to 50 Hz. That covers building and traffic vibration, washing machines, pumps, fans, and 3D printers. Bearing or gearbox diagnostics and certified measurements are beyond any smartphone — apps promising that are bluffing. The in-app page "Limits of this measurement" explains exactly what works, what doesn't, and why. TYPICAL USES Document construction vibration at your home · balance a washing machine · compare pumps and fans before and after maintenance · find 3D printer resonances · monitor sensitive cargo in transit NO SUBSCRIPTION. NO ADS. NO TRACKERS. All measurement data stays on your device. Nothing is uploaded, and nothing is locked into a proprietary format — the CSV you export is yours to keep, graph, and archive. Not a physics toolbox, not a sensor grab bag: one instrument, one job, done right. MeterWorks is a family of honest measurement apps: Sound Meter for your noise log, Teslameter for magnetic fields — just as honest, just as subscription-free.