Vibration Meter

The accelerometer measures how the phone's own body shakes. The reading depends on whether it lies on something or is held; to compare measurements, put the phone on the same surface each time.

The instrument uses the phone's accelerometer and shows the value in m/s².

• A large number, readable at arm's length.
• A chart of the last minutes — you can see it rise or fall.
• Minimum, average and maximum per session, reset with one button.
• A threshold with sound: an alert when the value goes above it.
• A table of everyday equivalents to compare your reading against.
• No ads. Under a megabyte. Works without internet.

The app sends anonymous usage statistics; you can turn this off in settings.