Ripple Sound Meter

A real-time sound toolbox: decibel meter, live 3D spectrum, and tuner. Fully offline, no ads, no in-app purchases. For reference only, not a certified measuring device.

Ripple Sound Meter turns your iPhone into a real-time sound toolbox: a decibel meter, a 3D scrolling spectrum, and a tuner, all running fully on your device.

Instead of a plain flat dial, the spectrum is drawn as a live 3D sound-wave terrain and the dB reading drives a 3D needle gauge, so what you hear takes a shape you can watch.

This app is for reference and curiosity only. It is not a certified measurement device; readings are uncalibrated estimates of ambient sound and should not be used for any professional or safety purpose.

FEATURES

• Decibel meter with a 3D needle gauge plus Max / Avg / Min hold
• Live 3D spectrum terrain from real-time FFT, with an optional 2D bar view
• Tuner that detects the main frequency, nearest note, and cents offset
• Recording: capture a dB-over-time curve and replay it from a local list
• A reference table of everyday sound levels (general knowledge, not medical advice)
• A / C weighting, a calibration offset, and a dark instrument theme

PRIVACY

• Works entirely offline, with no account or sign-in
• The microphone is used only to analyze sound levels live; no audio is recorded or uploaded
• No data collected, no ads, and no in-app purchases