**FOR STRUCTURAL ENGINEERING USE ONLY** • Collect vibration data from your phone's in-built accelerometer. • Fast and accurate frequency content analysis using Fast Fourier Transformation. • Quick and easy to check serviceability of suspended floors. • Measure the fundamental period of cantilever structures. • Estimate damping. • Diagnose issues with annoying floor vibrations. • Record and save results. • Adjust delay and total time of recording to suit your application. Disclaimer - Use of the Resonance Vibration Tool Analysis app is at your own risk. The app is provided on an AS-IS basis. We do not take any responsibility for decisions taken by the user based solely on the information provided in this app.