Decibel Meter X - Sound Level
Noise Recorder, Analyzer & FFT
Free · In‑App Purchases · Designed for iPad. Not verified for macOS.
Your pocket acoustic lab.
Turn your iPhone into a high-precision sound level meter for environmental noise checks, workplace safety, and evidence recording. Get reliable readings plus real-time spectrum analysis and hearing-protection insights.
[Key Features]
• Multiple weighting modes: calibrated dB readings with A/B/C/Z and ITU-R 468.
• Real-time spectrum: high-speed FFT with a clear 20Hz–20kHz distribution.
• Noise exposure tracking: OSHA/NIOSH Dose and TWA with risk alerts.
• Recording for evidence: record while measuring, supports background recording.
• Auto Pause: automatically pauses recording below a threshold and resumes above it.
• iCloud sync: measurements and recordings sync across devices.
• Professional reports: export PDF with trends, max/min/avg, and location.
• Calibration & privacy: manual device calibration; data stored locally or in your iCloud.
[Common Scenarios]
• Neighbor noise evidence: accurately record renovation/party noise levels and recordings to support complaints and dispute resolution.
• Sleep environment monitoring: check bedroom background noise, identify sources that affect sleep, improve rest quality.
• Workplace assessment: monitor noise exposure in factories, construction sites, or offices to prevent occupational hearing loss.
• Appliance noise testing: check whether air conditioners, refrigerators, or ventilation systems exceed limits for quality checks or returns.
• Hearing protection: monitor levels at concerts, clubs, and other loud environments to avoid irreversible hearing damage.
[Privacy]
Microphone access is only for sound analysis. Audio stays local or in your private iCloud.
[Subscription Info]
• You can subscribe for unlimited access to all features of Decibel Meter.
• Subscriptions are billed monthly or annually at the rate selected depending on the subscription plan.
By using this App, you agree to our Privacy Policy and Terms of Use:
http://cpux.gmud.top/web/soundmeterx/privacy-en.html
http://cpux.gmud.top/web/soundmeterx/terms-en.html
Ratings & Reviews
- Optimized for new devices including iPhone Duo and iOS 27
- Brand new app icon and refreshed visual design
- Added Live Activities and Keep Screen On support (toggle in App Settings)
- Fixed known issues and improved app stability
The developer, 永刚 陈, 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 Not Linked to You
The following data may be collected but it is not linked to your identity:
- Identifiers
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- 永刚 陈
- Size
- 7.5 MB
- Category
- Productivity
- 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.
- iPhone
- Languages
English and 11 more
- English, French, German, Indonesian, Japanese, Korean, Portuguese, Russian, Simplified Chinese, Spanish, Thai, Traditional Chinese
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Pro $1.99
- Pro $14.99
- Pro $29.99
- Copyright
- © SoundMeterX
