Decibel : dB sound level meter9.5.3 - App Store
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Publisher Description
Decibel turns your device into a powerful sound level meter without any extra hardware. Measure ambient noise in real time, monitor sound levels (dB), and explore frequencies with the built-in Spectrum Analyzer. Capture reliable sound and noise data wherever you are.
Designed for casual users, audio enthusiasts, and sound engineers, Decibel works as a portable sound meter for quick sound checks or deeper audio analysis. Use it to easily check noise levels, test room acoustics, monitor workplace noise, or fine-tune audio equipment. Decibel has various advanced features, including saving and exporting noise measurement data, live sound level overlays for photos and videos, and exporting data to the Health app to track noise exposure over time.
“The best way to meter sound levels” - AppAdvice
SLEEP TRACKING AND SOUND RECOGNITION
Decibel’s sleep tracking and smart sound recognition help you understand your sleep environment and nighttime noise. While sleep tracking is active, the app can detect common sleep sounds such as snoring, coughing, talking, and other household or environmental noise that may affect sleep quality.
Each detected sound appears on a detailed sleep timeline, so you can see exactly when disruptions occurred and play back the related audio. This makes it easier to identify snoring patterns, sleep disturbances, and noise events that impact your rest.
All sleep sound recognition and audio analysis are performed entirely on your device using advanced on-device machine learning. Recordings stay private, are processed locally, and never leave your device.
KEY FEATURES
- Visualize ambient sound levels and decibel (dB) readings in real time
- Sync with the Health app to track and export noise exposure data
- Add live sound level overlays to photos and videos
- Save sound measurements with location data and custom labels
- Record, store, export, and play back sound measurements
- Export sound and noise data in CSV or audio formats
SPECTRUM ANALYZER
- Integrated Spectrum Analyzer with FFT and spectrogram modes
- Multiple FFT sizes up to 16,384 points with selectable window functions
- Flexible visualization modes and graph styles
- Octave Band Real-Time Analyzer (RTA) for detailed frequency analysis
EXTERNAL MICROPHONES AND CALIBRATION
- Support for external microphones
- Calibrate connected microphones directly in the app
- Create and manage custom profiles for different microphones
REPORTING AND EXPORT
- Generate detailed noise measurement reports, including LAeq values
- Batch export multiple measurements in supported formats
Decibel app is not a replacement for professional devices and should be used for personal purposes only. By using this app, you acknowledge and agree that the developers and publishers are not liable for any decisions made based on the information provided by the app.
SUBSCRIPTIONS
Decibel offers optional subscriptions that unlock advanced tools and ongoing feature enhancements.
With a subscription, you get access to an expanding set of professional Spectrum Analyzer features, advanced sound level weighting modes, and continued updates for compatibility with new devices and hardware. Subscriptions also include support for external microphones, unlimited saving and exporting of measurements, batch export tools, and audio and video exports with sound level overlays.
Payment will be charged to your Apple account at confirmation of purchase. Subscriptions renew automatically unless auto-renewal is turned off at least 24 hours before the end of the current period. You can manage or disable auto-renewal at any time in your Apple ID account settings.
By downloading and using the app, you agree to the following:
Terms of Use: https://www.iubenda.com/terms-and-conditions/94359518
Privacy Policy: https://www.iubenda.com/privacy-policy/94359518
Disclaimer: http://dbmeterpro.com/disclaimer.html
Questions or feedback? Contact us at support@decibelpro.app
Version History • UI optimizations for iPhone Air
• In some rare cases, audio processing caused the app to crash on iOS versions prior to 26. This update may fix this issue.
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 9.5.3 Feb 12 • UI optimizations
• Minor bugfixes
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 9.5.2 12/02/2025 • App crash fix on Video overlay export
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 9.5.1 09/14/2025 • iOS 26 support
• Up to 8 hours autosave time
• Improved readability of file names when exporting
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 9.5 09/05/2025 • Fixed issue with video export
• UI optimizations
• Minor bugfixes
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 9.4.1 07/03/2025 • UI optimizations to support the latest iOS versions
• Updated mic calibration profiles to support the latest iOS versions
• New feature for switching to decimal precision in the app's settings
• Translation corrections
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 9.4 04/01/2025 • Minor bugfixes
• Stability improvements
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 9.3.1 02/29/2024 What’s New
With the brand-new loud warning feature, you can set your Apple Watch to alert you when you are:
• Speaking too loud
• Raising your voice or shouting
• In an environment where there is too much noise
Use it to:
• Prevent raising your voice
• Improve communication with family, friends, and colleagues
• Identify when you are in an environment that is too loud
• Protect your hearing and the hearing of those around you
Other improvements:
• Minor bug fixes
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 9.3 09/19/2023 • Fixed upside-down orientation for iOS 16+
• Fixed Japanese calendar in hearing test
• Fixed issue causing the video/photo overlay value reading to freeze when the user minimized the app and returned
• Fixed issue with sound type detection not working if the user changed to another type and then switched back
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 9.2 04/07/2023 With the new lossless audio recording feature, you can now record and export audio files in lossless WAV format. This file format stores all the data from the input audio stream in a lossless uncompressed format.
Other improvements:
Fixed noise report timer issue
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 9.1 12/20/2022 • Fixed issue causing errors on specific recording playback screen
• Fixed issue with spectrum rendering in recording playback screen
• Multiple UI improvements and minor bug fixes
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 9.0.3 12/05/2022 • Fixed issue causing errors on specific recording playback screen
• Fixed issue with spectrum rendering in recording playback screen
• Multiple UI improvements and minor bug fixes
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 9.0.2 12/02/2022 • iOS 16 support
• iPhone 14, iPhone 14 Plus, iPhone 14 Pro and iPhone 14 Pro Max support
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 9.0.1 09/30/2022 Major update with brand-new features
• You can now export and print noise reports complete with date and time details, a noise graph, and LAeq maximum and minimum values split by octave bands.
In addition, you can also choose to add location details to the noise report.
Other improvements:
• New and improved home screen design.
• Fixed issue causing incorrect readings in certain rare cases after switching multiple times from video recording to main screen and back.
• Multiple bug fixes for an ever smoother user experience that make 99.9% of sessions crash-free.
• Multiple UI improvements and fixes.
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 9.0 08/31/2022 • Minor bugfixes
• Stability improvements
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 8.3.7 07/05/2022 • Minor bugfixes
• Stability improvements
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 8.3.6 06/16/2022 • Minor bugfixes
• Stability improvements
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 8.3.5 06/15/2022 • Minor bugfixes
• Stability improvements
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 8.3.4 05/21/2022 • Minor bugfixes
• Stability improvements
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 8.3.3 01/21/2022 • Minor bugfixes
• Stability improvements
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 8.3.2 01/05/2022 • Minor bugfixes
• Stability improvements
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 8.3.1 12/23/2021 • Option added to export detailed CSV for Spectrum Analyzer
• Video overlay time frame optimization
• Interface orientation fixes
• Spectrum analyzer rendering improvements
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 8.3 12/18/2021 • Added feature that identifies 200+ noise types with the power of Machine Learning and Sound Analysis (only for iOS 15 and later)
• Support for new iPad Mini
* Fixed issue occurring in rare cases of wrong dB readings in camera overlay
* Fixed issue of sound playing after sharing a video with noise overlay
* Fixed issue relating to iPad external mics support
* UI tweaks for hearing test
* Fixed issue with Max\Min values reseting
* Fixed issue with incorrect price labels occurring in rare cases
* Various bugfixes and stability improvements
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 8.2.1 10/24/2021 • Added feature that identifies 200+ noise types with the power of Machine Learning and Sound Analysis (only for iOS 15 and later)
• Support for new iPad Mini
* Fixed issue occurring in rare cases of wrong dB readings in camera overlay
* Fixed issue of sound playing after sharing a video with noise overlay
* Fixed issue relating to iPad external mics support
* UI tweaks for hearing test
* Fixed issue with Max\Min values reseting
* Various bugfixes and stability improvements
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 8.2 10/23/2021 • Minor bugfixes
• Stability improvements
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 8.1.4 09/13/2021
About Decibel : dB sound level meter
The company that develops Decibel : dB sound level meter is Vlad Polyanskiy. The latest version released by its developer is 9.5.3.
To install Decibel : dB sound level meter on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-14 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the Decibel : dB sound level meter as malware if the download link is broken.
How to install Decibel : dB sound level meter on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the Decibel : dB sound level meter is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After Decibel : dB sound level meter is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 9.5.3
posted on 2026-10-14
Version History • UI optimizations for iPhone Air
• In some rare cases, audio processing caused the app to crash on iOS versions prior to 26. This update may fix this issue.
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 9.5.3 Feb 12 • UI optimizations
• Minor bugfixes
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 9.5.2 12/02/2025 • App crash fix on Video overlay export
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 9.5.1 09/14/2025 • iOS 26 support
• Up to 8 hours autosave time
• Improved readability of file names when exporting
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 9.5 09/05/2025 • Fixed issue with video export
• UI optimizations
• Minor bugfixes
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 9.4.1 07/03/2025 • UI optimizations to support the latest iOS versions
• Updated mic calibration profiles to support the latest iOS versions
• New feature for switching to decimal precision in the app's settings
• Translation corrections
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 9.4 04/01/2025 • Minor bugfixes
• Stability improvements
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 9.3.1 02/29/2024 What’s New
With the brand-new loud warning feature, you can set your Apple Watch to alert you when you are:
• Speaking too loud
• Raising your voice or shouting
• In an environment where there is too much noise
Use it to:
• Prevent raising your voice
• Improve communication with family, friends, and colleagues
• Identify when you are in an environment that is too loud
• Protect your hearing and the hearing of those around you
Other improvements:
• Minor bug fixes
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 9.3 09/19/2023 • Fixed upside-down orientation for iOS 16+
• Fixed Japanese calendar in hearing test
• Fixed issue causing the video/photo overlay value reading to freeze when the user minimized the app and returned
• Fixed issue with sound type detection not working if the user changed to another type and then switched back
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 9.2 04/07/2023 With the new lossless audio recording feature, you can now record and export audio files in lossless WAV format. This file format stores all the data from the input audio stream in a lossless uncompressed format.
Other improvements:
Fixed noise report timer issue
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 9.1 12/20/2022 • Fixed issue causing errors on specific recording playback screen
• Fixed issue with spectrum rendering in recording playback screen
• Multiple UI improvements and minor bug fixes
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 9.0.3 12/05/2022 • Fixed issue causing errors on specific recording playback screen
• Fixed issue with spectrum rendering in recording playback screen
• Multiple UI improvements and minor bug fixes
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 9.0.2 12/02/2022 • iOS 16 support
• iPhone 14, iPhone 14 Plus, iPhone 14 Pro and iPhone 14 Pro Max support
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 9.0.1 09/30/2022 Major update with brand-new features
• You can now export and print noise reports complete with date and time details, a noise graph, and LAeq maximum and minimum values split by octave bands.
In addition, you can also choose to add location details to the noise report.
Other improvements:
• New and improved home screen design.
• Fixed issue causing incorrect readings in certain rare cases after switching multiple times from video recording to main screen and back.
• Multiple bug fixes for an ever smoother user experience that make 99.9% of sessions crash-free.
• Multiple UI improvements and fixes.
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 9.0 08/31/2022 • Minor bugfixes
• Stability improvements
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 8.3.7 07/05/2022 • Minor bugfixes
• Stability improvements
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 8.3.6 06/16/2022 • Minor bugfixes
• Stability improvements
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 8.3.5 06/15/2022 • Minor bugfixes
• Stability improvements
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 8.3.4 05/21/2022 • Minor bugfixes
• Stability improvements
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 8.3.3 01/21/2022 • Minor bugfixes
• Stability improvements
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 8.3.2 01/05/2022 • Minor bugfixes
• Stability improvements
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 8.3.1 12/23/2021 • Option added to export detailed CSV for Spectrum Analyzer
• Video overlay time frame optimization
• Interface orientation fixes
• Spectrum analyzer rendering improvements
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 8.3 12/18/2021 • Added feature that identifies 200+ noise types with the power of Machine Learning and Sound Analysis (only for iOS 15 and later)
• Support for new iPad Mini
* Fixed issue occurring in rare cases of wrong dB readings in camera overlay
* Fixed issue of sound playing after sharing a video with noise overlay
* Fixed issue relating to iPad external mics support
* UI tweaks for hearing test
* Fixed issue with Max\Min values reseting
* Fixed issue with incorrect price labels occurring in rare cases
* Various bugfixes and stability improvements
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 8.2.1 10/24/2021 • Added feature that identifies 200+ noise types with the power of Machine Learning and Sound Analysis (only for iOS 15 and later)
• Support for new iPad Mini
* Fixed issue occurring in rare cases of wrong dB readings in camera overlay
* Fixed issue of sound playing after sharing a video with noise overlay
* Fixed issue relating to iPad external mics support
* UI tweaks for hearing test
* Fixed issue with Max\Min values reseting
* Various bugfixes and stability improvements
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 8.2 10/23/2021 • Minor bugfixes
• Stability improvements
Do you like the new version of the app? Share your review on the App Store.
Do you dislike anything about it? All the more reason to say something!
Your comments help make the app better and I'm value them greatly so don't hesitate to share them. 8.1.4 09/13/2021
Disclaimer
Official App Store Link
We do not host Decibel : dB sound level meter on our servers. We did not scan it for viruses, adware, spyware or other type of malware. This app is hosted by Apple and passed their terms and conditions to be listed there. We recommend caution when installing it.
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