Decibel Meter - Noise Meter dB
Sound Level Spectrum Analyzer
Only for iPhone
Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.
iPhone
Turn your iPhone into a professional sound level meter, noise meter, and decibel meter for accurate, real-time audio measurement. Decibel Meter measures ambient noise with pre-calibrated dB readings, so you always know exactly how loud your surroundings are — at home, at work, at concerts, or on the go. Protect your hearing, monitor noisy environments, and finally understand the sound around you.
Whether you are checking workplace noise, improving room acoustics, monitoring environmental noise pollution, or tuning audio systems, this app provides fast, reliable sound level measurements in dBA, dBC, and dBZ.
WHAT MAKES IT GREAT
- Trusted accuracy: pre-calibrated for iPhone and iPad, with built-in microphone calibration tools for improved precision
- Real-time measurement: decibel (dB) readings update continuously, with A, C, and Z frequency weighting (dBA, dBC, dBZ)
- Response modes: FAST, SLOW, and IMPULSE with real-time average (Leq) and peak detection
- Spectrum Analyzer: real-time FFT, spectrogram, and octave-band visualization for audio analysis and acoustic tuning
- Noise Dosimeter: daily noise exposure estimates based on NIOSH & OSHA standards
- Long-term tracking: save measurement history with timestamps and review historical logs
- Export & share: export detailed PDF reports and share results instantly
- Accurate frequency detection for sound analysis, audio diagnostics, and equipment tuning
- Beautiful, intuitive UI with digital and analog displays
TECHNICAL SPECS
- Measurement range: 30–130 dBA
- Response time: SLOW (500 ms), FAST (200 ms), IMPULSE (50 ms)
- MIC gain offset: -50 dB to +50 dB
- Real-time current, average (Leq), and max values with digital & analog displays
USE CASES
Noise measurement, environmental noise monitoring, home cinema calibration, room acoustics, workplace safety, and audio testing.
PRIVACY
All audio processing is performed locally on your device. No recordings or sound data are uploaded or shared.
NOTES
- An average quiet room reads about 30 dBA; the 30–130 dBA range is the standard usable range.
- For professional use, custom calibration with a reference device is recommended.
- This app is for reference and educational purposes only. It is not a replacement for certified professional acoustic measurement equipment. Accuracy may vary depending on device hardware and microphone quality.
SUBSCRIPTION TERMS
Decibel Meter is free to download with core features included. A premium subscription unlocks advanced spectrum analysis, unlimited exports, and professional reporting tools.
Payment will be charged to your Apple ID account upon confirmation. Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current period. You can manage or cancel subscriptions in your Apple ID settings at any time. No refunds for unused subscription periods.
LEGAL
Terms of Use: https://seeyastech.com/terms
Privacy Policy: https://seeyastech.com/privacy
Support: info@seeyastech.com
Performance improvements and bug fixes for a smoother experience.
The developer, SEEYAS LIMITED, 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
Data Not Linked to You
The following data may be collected but it is not linked to your identity:
- Location
- Identifiers
- Usage Data
- Diagnostics
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- SEEYAS LIMITED
- Size
- 71.1 MB
- Category
- Utilities
- Compatibility
Requires iOS 15.0 or later.
- iPhone
Requires iOS 15.0 or later. - iPod touch
Requires iOS 15.0 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 31 more
- English, Arabic, Croatian, Czech, Danish, Dutch, Finnish, French, German, Greek, Hebrew, Hungarian, Indonesian, Italian, Japanese, Korean, Malay, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Simplified Chinese, Slovak, Slovenian, Spanish, Swedish, Thai, Traditional Chinese, Turkish, Ukrainian, Vietnamese
- Age Rating
4+
- 4+
- Contains
Advertising
- In-App Purchases
Yes
- Weekly Premium $14.99
- Weekly Premium $9.99
- Weekly Premium $4.99
- Weekly Premium Discount $2.99
- Monthly Premium $9.99
- Annual Premium $49.99
- Copyright
- © SEEYAS LIMITED