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Know How Loud the Room Really Is

A sound level meter for iPhone and iPad, built for anyone who runs sound or leads live music, with readings you can trust from the booth to the back row.

Coming Soon to the App Store

The real-time graph of the last 5 minutes, with the target range drawn in
The meter’s gauge inside its target range, with the live spectrum below

Accuracy Comes First

Built to agree with a real sound level meter, and to tell you when it can’t.

How Accuracy Works

  • Measurement Mode

    Turns off the automatic gain and voice processing that make phone meters read low.

  • Profiles for Each Device

    Each built-in profile corrects one device model, tested against a reference meter.

  • Honest About Calibration

    Devices without a profile show an Uncalibrated badge instead of a confident wrong number.

Built for Live Sound

Everything on one screen, readable at a glance from behind the console.

Explore All Features

  • Read the Room at a Glance

    A large live dBA reading, the 5-second average, the last 30 seconds, and the peak.

  • Alerts Only You Notice

    A colored border shows when the room leaves your target range. No sound, no vibration.

    Too quietIn rangeToo loud

  • See Where the Sound Is

    A live 1/3-octave spectrum from 20 Hz to 20 kHz under the gauge.

  • Look Back at the Last Few Minutes

    A real-time graph of the last 1, 5, 15, or 30 minutes, one tap away.

  • Standard Weightings

    dBA by default, optional dBC, and Fast or Slow response from IEC 61672-1.

  • Made for the Booth

    Light and dark appearance, a screen that stays awake, and Pause that keeps measuring.

See How It Works for You

Pick the kind of room you run.

Free to Download

The whole meter is free. Pro is there if you want it.

  • Free

    Everything you need to meter a room.

    • The meter, spectrum, and graph
    • Every built-in device profile
    • Target Range alerts
    • Banner ads, and the app never asks to track you

  • Pro

    A one-time purchase, not a subscription.

    • No ads
    • Calibrate any device against your own meter
    • Everything in Free

Coming Soon to the App Store