Sotto: Decibel & Sound Meter

Measure sound in seconds. Save timestamped readings, add location and notes, and share a clean noise receipt—no ads, accounts, or subscriptions.

Sotto is a fast, minimal decibel meter that helps you understand, save, and share the sound levels around you.

Open Sotto and it starts measuring immediately. No setup, account, or tutorial required. See the current dB reading alongside a plain-language label such as “Calm conversation,” “Busy restaurant,” or “Concert level”—so the number has useful context.

Sotto also tracks the minimum, average, and maximum sound levels during each session.

When a reading matters, save it as a noise receipt with:

• Decibel level and plain-language context
• Minimum, average, and maximum readings
• Date and time
• Location
• An optional note

Review your measurement history whenever you need it. Share a clean noise receipt for documenting a noise concern, checking a venue or workspace, comparing environments, or simply satisfying your curiosity.

Your audio stays private. Sotto analyzes microphone input in real time to calculate sound levels—it does not create, save, or upload audio recordings.

Free features:

• Real-time decibel meter
• Plain-language sound context
• Live minimum, average, and maximum levels
• Up to three saved measurements with location and notes

Sotto Pro—one-time purchase:

• Save unlimited measurements
• Create and share noise receipts
• No subscription

Built by PhantomBuild.

No ads. No account required. No audio recordings.

Sotto provides estimated sound levels for everyday reference and is not a calibrated professional instrument.