Decibel Meter: Noise dB
by Duc Nguyen Ba Trung
· Utilities
· Free
On the App Store since July 2026
· Data updated
Decibel Meter: Noise dB is made and published by Duc Nguyen Ba Trung. AppBrain is an independent app data site and isn't affiliated with Duc Nguyen Ba Trung. The app name, icon, screenshots and description belong to Duc Nguyen Ba Trung and are shown as published on the App Store.
AppBrain's verdict
- Last updated
- July 14, 2026
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Releases
Updates seen on the App Store- Version
- 1.0
- Launched
- July 2026
No changelog data
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Technology
Found in the app by AppBrain- Price
- Free
- App size
- 13.7 MB
- Content rating
- Everyone
Technologies used by Decibel Meter: Noise dB
About the app and developer
About Decibel Meter: Noise dB
Decibel Meter: Noise dB is an utilities app developed by Duc Nguyen Ba Trung.
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The app has no ratings yet.
App Information
Decibel Meter: Noise dB is freely available from the App Store. The app size is 13.66 MB. The latest version available is 1.0. The last update was on July 14, 2026.
Technical Requirements
The app has a content rating of Everyone. The app has been available on the App Store since July 2026.
Developer information for Duc Nguyen Ba Trung
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Store listing
By Duc Nguyen Ba Trung, from the App Store
Screenshots by Duc Nguyen Ba Trung, from the the App Store listing
Description by Duc Nguyen Ba Trung Written by the developer, not by AppBrain. Click to read.
Decibel Meter helps you understand the sound around you in real time. Open the app, allow microphone access and instantly see the current decibel level with min, average, max and peak readings. Use it at home, at work, outdoors, at events or anywhere you want a quick picture of the noise level.
Key features:
- Real-time SPL metering with dBA, dBC and dBZ frequency weighting
- Fast and Slow time response for quick or steadier readings
- Min, Avg/Leq, Max and Peak measurements
- L10, L50 and L90 statistical noise levels
- Live 30-second level chart
- FFT spectrum analyzer with dominant frequency and peak hold
- Noise alarm with adjustable threshold
- Presets for Environment, Workplace, Concert and Sleep
- Session recording with history, notes and charts
- PDF, CSV and image sharing
- Calibration offset for matching a reference meter
- NIOSH-style hearing exposure guidance
Use Decibel Meter to:
- Check if a room is quiet enough for sleep, study or recording
- Compare noise levels between offices, cafes, streets or appliances
- Monitor loud environments such as workshops, traffic and concerts
- Save measurement sessions for later review
- Share sound level reports with others
Subscription Pricing & Terms:
Account Charge: Your Apple Account will be charged once you confirm your purchase.
Account Settings: You can manage your subscriptions and disable auto-renewal in your Account Settings after the purchase.
Auto-Renewal: Subscriptions will automatically renew unless auto-renewal is turned off at least 24 hours before the end of the current period.
Renewal Cost: The renewal cost will be charged to your account 24 hours before the end of the current period.
Free Trial: The yearly plan includes a 3-day free trial. Any unused portion of the free trial period will be forfeited when you purchase a subscription. Cancel at least 24 hours before the trial ends to avoid being charged.
Cancellation Policy: If you choose to cancel a subscription, it will remain active until the end of the period. Auto-renewal will be disabled, but no refunds will be provided for the current subscription.
Lifetime: The Lifetime option is a one-time purchase that unlocks Premium forever — no subscription, no renewal.
Terms (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://docs.google.com/document/d/e/2PACX-1vRBoPRdt804Zl65f6ehxNdFCeHi-R_O6H1_ehyPX1cYZbIj3VQ_WAnD9QLMpw1zynh5UYQXnh0sl71L/pub
Key features:
- Real-time SPL metering with dBA, dBC and dBZ frequency weighting
- Fast and Slow time response for quick or steadier readings
- Min, Avg/Leq, Max and Peak measurements
- L10, L50 and L90 statistical noise levels
- Live 30-second level chart
- FFT spectrum analyzer with dominant frequency and peak hold
- Noise alarm with adjustable threshold
- Presets for Environment, Workplace, Concert and Sleep
- Session recording with history, notes and charts
- PDF, CSV and image sharing
- Calibration offset for matching a reference meter
- NIOSH-style hearing exposure guidance
Use Decibel Meter to:
- Check if a room is quiet enough for sleep, study or recording
- Compare noise levels between offices, cafes, streets or appliances
- Monitor loud environments such as workshops, traffic and concerts
- Save measurement sessions for later review
- Share sound level reports with others
Subscription Pricing & Terms:
Account Charge: Your Apple Account will be charged once you confirm your purchase.
Account Settings: You can manage your subscriptions and disable auto-renewal in your Account Settings after the purchase.
Auto-Renewal: Subscriptions will automatically renew unless auto-renewal is turned off at least 24 hours before the end of the current period.
Renewal Cost: The renewal cost will be charged to your account 24 hours before the end of the current period.
Free Trial: The yearly plan includes a 3-day free trial. Any unused portion of the free trial period will be forfeited when you purchase a subscription. Cancel at least 24 hours before the trial ends to avoid being charged.
Cancellation Policy: If you choose to cancel a subscription, it will remain active until the end of the period. Auto-renewal will be disabled, but no refunds will be provided for the current subscription.
Lifetime: The Lifetime option is a one-time purchase that unlocks Premium forever — no subscription, no renewal.
Terms (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/
Privacy Policy: https://docs.google.com/document/d/e/2PACX-1vRBoPRdt804Zl65f6ehxNdFCeHi-R_O6H1_ehyPX1cYZbIj3VQ_WAnD9QLMpw1zynh5UYQXnh0sl71L/pub