dB Now: Decibel Meter

Contains adsIn-app purchases
Content rating
Everyone
0+
Downloads
Content rating
Everyone
In-App Purchases
Learn more
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image
Screenshot image

About this app

Measure sound levels in decibels (dB) with your phone's microphone. dB Now shows the current level, compares it with everyday sounds, and can be calibrated against a real sound meter.

Features:
- dB(A) and dB(C), Fast and Slow
- Min, average and max values
- Level, waveform, spectrum and frequency graphs
- Everyday noise reference
- Calibration with a sound calibrator or by hand
- Works offline, no account, never records audio

dB Now Pro (one-time purchase):
- Noise log with chart
- CSV export
- Noise alerts
- Calibration profiles

Our ads never make sound. It's a sound meter.

Note: Phone microphones are made for voices, so very loud sounds may go past what they can measure. Uncalibrated readings are typically within ±3 dB. The noise log runs while dB Now is open. For reference only, not a certified sound level meter.
Sound level meter in dB(A) and dB(C), with live graphs and calibration. Offline.
Updated on
Sep 30, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • This app may share these data types with third parties
    Location, App activity and 2 others
  • This app may collect these data types
    Location, App activity and 2 others
  • Data is encrypted in transit

What’s new

First release: a sound level meter in dB(A) and dB(C) with four live graphs and calibration, plus dB Now Pro: noise logs, CSV export and threshold alerts.