Sound Meter - Sotto

Turn your iPhone into a precise sound meter. Measure decibel levels in real time and better understand the noise around you.

Sotto is a minimal sound level meter that measures the decibel level around you in real time.

Open the app, and it starts listening. No setup, no account, no tutorial. The screen shows your current dB reading with a plain-language label — "Calm conversation," "Busy restaurant," "Concert level" — so you know what the number actually means.

Tap Save to capture a measurement with the timestamp, your location, and an optional note. Review your history anytime. Share a clean measurement card with anyone — useful for documenting noise complaints, checking venue levels, or just satisfying your curiosity.

No audio is ever recorded or stored. Sotto only reads the microphone's amplitude level.

Free features:

• Real-time dB meter with context labels.
• Min, Avg, and Max tracking per session.
• Save up to 3 measurements with location and notes.

Sotto Pro (one-time purchase):

• Save unlimited measurements.
• Share and export measurement cards.

Built by PhantomBuild. No ads. No tracking. No account required.