Noise Meter - dB, Noise, Log
Measure, record, prove noise
Only for iPhone
Free · Designed for iPhone. Not verified for macOS.
iPhone
Do not just say it was loud. Measure it in decibels, record it, check it against day and night limits, and export a one page PDF report you can actually hand in.
Measure it. Record it. Put it on paper.
Saying it was loud is easy to dismiss. A document that says how many decibels, at what time, for how long, is not. Noise Meter measures everyday noise in decibels, records it, and turns every session into a one page measurement report you can hand in.
[While you measure]
- A live waveform and gauge show how loud it is right now.
- Peak level (Lmax) and 1 minute and 5 minute equivalent levels are calculated as you record.
- Day limits (06:00 to 22:00) and night limits (22:00 to 06:00) are applied automatically. Night is 5dB stricter.
- Tap a source button the moment you hear it (footsteps, dragged furniture, a dropped object) and it is marked at that exact point.
- Recording keeps running with the screen off.
[Calibration that fits your phone]
Microphone sensitivity differs by device. One 10 second calibration gets your numbers right, and the offset used is printed on the report so whoever reads it knows the conditions.
[One page that holds up]
- Time, day or night band, place and device in the overview.
- Measured values next to the limits, with a clear over or within verdict.
- A SHA-256 hash of the audio file, so you can show the file was not altered.
- Export to PDF and the share sheet opens. Mail it, print it or save it.
[Patterns that appear over time]
- A weekday by hour heatmap shows when it keeps happening.
- Weekly trend, over limit ratio and source breakdown at a glance.
- Put two recordings side by side and see exactly what changed.
- Filter for night only or over limit only.
[What to do next]
Step by step guidance on who to tell first, what to prepare and where to file.
[Your recordings stay on your phone]
No sign up, no login. Audio and measurements are stored on the device only and are never sent to a server. Check how much is stored and wipe all of it in one tap.
[Also]
Korean, English, Japanese, French and Spanish. Light and dark themes. Screen reader labels on every screen.
[Please note]
Values come from the built in microphone and may differ from a certified sound level meter (IEC 61672). For official measurements use your local authority noise service and treat these records as supporting evidence. Recording a conversation between other people that you are not part of may be illegal where you live. You are responsible for what you record and how you use it.
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The developer, EcodeLab, 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:
- Identifiers
- Usage Data
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- EcodeLab
- Size
- 57.5 MB
- Category
- Utilities
- Compatibility
Requires iOS 15.1 or later.
- iPhone
Requires iOS 15.1 or later. - iPod touch
Requires iOS 15.1 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.
- iPhone
- Languages
English and 4 more
- English, French, Japanese, Korean, Spanish
- Age Rating
13+
- 13+
- Contains
Advertising
- Copyright
- © 2025 EcodeLab