Noise Meter: Decibel dB Meter

Sound Level Meter & SPL

Only for iPhone

Free · In-App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

Measure live dB for free. After a meaningful reading, unlock detailed analysis, CSV and unlimited history once—no subscription or ads. Turn your phone into a practical sound-level reference. Noise Meter opens straight to a live dB reading with an analogue gauge, recent chart, minimum, average, maximum, peak and Leq. Save measurements for later, share a clear summary, or export CSV. Adjust A/C/Z frequency weighting, choose Fast or Slow response, and calibrate the offset for your device. Premium analysis adds a 1/3-octave spectrum, L10/L50/L90 statistics, NIOSH/OSHA dose estimates, CSV export and unlimited history. Smartphone microphone readings vary by device and environment. Use the app as a reference; it does not replace a certified sound-level meter or legal measurement.

Ratings & Reviews

  • This app has not received enough ratings or reviews to display an overview.

A clearer result-first Premium path: measure live dB free, then unlock detailed analysis, CSV export and unlimited history after a meaningful reading. The same one-time lifetime purchase remains—no subscription. Text sharing and the first 10 saved sessions stay free, and a cancelled purchase returns you safely to your result.

Version 1.0.1

The developer, Sunwoo Kim, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Used to Track You

    The following data may be used to track you across apps and websites owned by other companies:

    • Identifiers
    • Usage Data

  • Data Linked to You

    The following data may be collected and linked to your identity:

    • User Content
    • Identifiers
    • Usage Data
    • Diagnostics

  • Data Not Linked to You

    The following data may be collected but it is not linked to your identity:

    • Purchases
    • Identifiers

Privacy practices may vary based, for example, on the features you use or your age. Learn More

Accessibility

The developer has not yet indicated which accessibility features this app supports. Learn More

Information

Provider
  • Sunwoo Kim
Size
  • 56.3 MB
Category
  • Utilities
Compatibility
Requires iOS 16.0 or later.
  • iPhone
    Requires iOS 16.0 or later.
  • Mac
    Requires macOS 12.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
English and 2 more
  • English, Japanese, Korean
Age Rating
4+
In-App Purchases
Yes
Copyright
  • © 2026 SecondEarth AI
  • Developer Website
  • Privacy Policy

    • More by Sunwoo Kim