Decibel Meter: Noise Detector

Noise Tracker & Sleep Sounds

Free · In‑App Purchases · Designed for iPad. Not verified for macOS.

Measure ambient sound in real time, record detailed sessions, mix 16 calming soundscapes, and run privacy-friendly device checks—all in one app. Understand the sound around you with a clear, real-time decibel meter. Decibel Meter turns your iPhone or iPad into a practical sound-level companion. View the current reading, minimum, average, maximum, range, live trend, and noise category at a glance. MEASURE AND UNDERSTAND SOUND • Monitor ambient sound levels in real time • See current, minimum, average, maximum, and range values • Follow an 18-second live analyzer and session duration • Compare readings with a built-in noise level guide • Calibrate from -20 to +20 dB against a trusted reference RECORD YOUR MEASUREMENTS • Record measurement sessions with their timeline and statistics • Review saved sessions whenever you need them • Delete saved measurements easily • Keep measurement data stored locally on your device RELAX, FOCUS, OR SLEEP • Mix 16 procedural soundscapes, including rain, ocean waves, forest, white noise, pink noise, brown noise, fan, birds, stream, wind, thunder, campfire, crickets, clock, piano, and meditation • Adjust each sound independently • Save favorite mixes as presets • Set a sleep timer and receive a local notification when playback ends • Continue soundscape playback in the background CHECK YOUR DEVICE • Test the microphone and speaker • Review battery, storage, display, connectivity, audio routes, and available sensors PRIVATE BY DESIGN Microphone audio is analyzed on your device. The app does not upload your listening session. Recording a measurement saves sound-level data and statistics—not microphone audio. IMPORTANT Phone microphones are not certified sound-level meters, and readings may vary by device. Calibrate against a trusted instrument when accuracy matters. This app is intended as a practical reference tool and is not a substitute for certified equipment or professional hearing-safety advice. PREMIUM FEATURES — SEPARATE PURCHASE REQUIRED • Unlimited measurement recording requires a Premium subscription • Removing advertisements requires a Premium subscription Privacy Policy: https://nhantran2112.github.io/decibel-meter-sound-detector/privacy-policy.html Terms of Use: https://nhantran2112.github.io/decibel-meter-sound-detector/terms-of-use.html

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The developer, Nhan Tran, 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:

    • Usage Data

  • Data Not Linked to You

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

    • Usage Data

Privacy practices may vary, for example, based 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

Seller
Nhan Tran
Size
50.2 MB
Category
Utilities
Compatibility
Requires iOS 17.0 or later.
  • iPhone
    Requires iOS 17.0 or later.
  • iPad
    Requires iPadOS 17.0 or later.
  • Mac
    Requires macOS 14.0 or later and a Mac with Apple M1 chip or later.
  • Apple Vision
    Requires visionOS 1.0 or later.
Languages
English and 16 more
  • English, Arabic, Dutch, French, German, Hindi, Indonesian, Italian, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish, Thai, Turkish, Vietnamese
Age Rating
4+
In-App Purchases
Yes
Copyright
© Nhan Tran
  • Developer Website
  • Privacy Policy

    • More by Nhan Tran

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