dB Sound Level Meter: Decibel 4+

Decibel Meter app uses the built-in microphone to determine the level of sound it detects and displays it in decibels (dB). Microphone audio data is used to calculate dB (Decibels) / AF (Audio Frequency) reading to the user.

The decibel meter app has highly reliable, pre-calibrated measurements. It turns your iOS device into a professional sound level meter.

Track environmental noise around you with this easy-to-use decibel meter app. This app will transform your device into a professional grade sound detector with detailed visual analysis.

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