Vibrations is an app for measuring mechanical vibrations and acoustic noise from engines, the environment, machines, and other equipment.
This is (currently) the only app that combines acoustic and mechanical measurements!
Four measurements to display:
1) The g-force (excluding gravity), which measures acceleration
2) The frequency of the current peak in the mechanical/vibration noise
3) The frequency of the current peak in the acoustic noise
4) The sample rate at which mechanical vibrations are being measured