Decibel X PRO: dBA Noise Meter

Decibel X PRO: dBA Noise Meter

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Logo of Decibel X PRO: dBA Noise Meter

Decibel X PRO: Professional Sound Level Meter & Noise Dosimeter

Turn your iPhone into a pre-calibrated, lab-grade tool for OSHA-compliant monitoring, hearing protection, and professional audio analysis with Apple Health integration.

Download on App Store

Publisher

SkyPaw Co., Limited

Category

Utilities

Downloads

308K+

User Rating

4.7/5

Total Ratings

15K+

Locales

12

Precision at a Glance

Discover the interface used by 308K+ users.

Decibel X PRO app interface showing professional sound level measurements and frequency analysis graphs on a smartphone screen.

Decibel X PRO app interface showing professional sound level measurements and frequency analysis graphs on a smartphone screen.

Smartphone screen displaying Decibel X PRO with noise level meter and spectrum analyzer.

Smartphone screen displaying Decibel X PRO with noise level meter and spectrum analyzer.

Decibel X PRO app showing real time noise level meter and frequency analysis graph

Decibel X PRO app showing real time noise level meter and frequency analysis graph

Decibel X PRO noise dosimeter interface showing dose percentage and NIOSH safety standards

Decibel X PRO noise dosimeter interface showing dose percentage and NIOSH safety standards

Interface of Decibel X PRO showing noise measurement records and various data export formats like WAV and CSV

Interface of Decibel X PRO showing noise measurement records and various data export formats like WAV and CSV

Decibel X PRO noise meter interface showing integration with the Apple Health app for tracking environmental sound levels.

Decibel X PRO noise meter interface showing integration with the Apple Health app for tracking environmental sound levels.

Decibel X PRO app showing the professional calibration screen with octave frequency analysis and decibel readings

Decibel X PRO app showing the professional calibration screen with octave frequency analysis and decibel readings

Decibel X PRO app screenshot showing the camera feature with real-time sound level data and frequency graphs overlaid on a photo

Decibel X PRO app screenshot showing the camera feature with real-time sound level data and frequency graphs overlaid on a photo

Decibel X PRO noise meter app interface displaying dark light and classic themes

Decibel X PRO noise meter app interface displaying dark light and classic themes

Precision Noise Monitoring You Can Trust

The tools that make this app stand out, trusted by 308K+ users.

🛡️

Certified Accuracy & OSHA Standards

Rely on pre-calibrated measurements and built-in NIOSH/OSHA dosimeters to ensure your workplace or environment meets official safety regulations.

Seamless Apple Ecosystem Integration

Monitor decibel levels directly from your Apple Watch and automatically sync noise exposure data to your Apple Health app for a complete health overview.

📊

Professional Data & Reporting

Capture detailed frequency analysis and export high-resolution graphs or CSV files as definitive evidence for noise disputes or professional audio audits.

Loved by users worldwide

Trusted by 308K+ people who love this app.

"

"Finally, a noise meter I can trust for professional work. I compared the dBA readings to my expensive standalone hardware, and Decibel X PRO is incredibly accurate. The NIOSH and OSHA dosimeter features are essential for my daily safety audits, and having the data sync to my Apple Watch is a total game-changer on loud construction sites."

Marcus G., Safety Consultant
"

"This app was the perfect tool for documenting noise pollution in my neighborhood. The InstaDecibel feature allowed me to capture photos with the exact noise levels overlaid as proof for my building management. I also love how it integrates with my Apple Health data to help me monitor my long-term hearing health."

Elena Rodriguez, Urban Resident

About the app

Everything you need to know about Decibel X PRO: dBA Noise Meter.

Description

"Decibel X" is the leading noise meter app on the market, which has highly reliable, pre-calibrated measurements and supports dBA, dBC. Our success lies at the intersection of expertise in sound communication, listening to our dear users, and our vision to build a great product. Our app turns your iOS device into a professional sound level meter, precisely measures the sound pressure level (SPL) all around you. While this pro tool mainly aids audio experts or workers prone to noise pollution, it can also add more fun and protect your hearing. Have you ever wondered how quiet your surroundings are or how loud is a rock concert or football match? "Decibel X" will help you answer all of those. WHAT MAKE IT GREAT AND STAND OUT FROM OTHER APPS: - Trusted accuracy: the app is tested and pre calibrated for all Apple devices. The precision is matching with real SPL devices - Apple Watch support: see noise level right from your wrist - Health App integration: export noise levels directly into Health app. - Frequency weighting filters: ITU-R 468, A, B, C, Z - Powerful, smart history data management: + Recording data can be saved into a list of history records for future access and analysis + Each record can be exported as hi-res PNG graph or CSV text via sharing services + iCloud support which synchronize all history records across your Apple devices + Fullscreen mode to give overview the whole history of an record - Dosimeter with NIOSH, OSHA standards - FFT and BAR graphs to display real time FFT. Those are very useful for frequency analysis and musical tests. Real time predominant frequency is also displayed. - WAVE graph with 2 display modes: Rolling & Buffer - InstaDecibel to capture your dB report overlaid on photos and easily shared via popular social networks (Facebook, Instagram, Messages, etc.). - Support both Portrait and Landscape layouts - Beautiful, intuitive and carefully crafted UI design - Optimized for iOS 11 OTHER GREAT FEATURES: - Standard time weightings (Response Time): SLOW (500 milliseconds) and FAST (200 milliseconds) - Trimming calibration from -15 dB to 15 dB - Standard measurement range from 30 dBA up to 130 dBA - HISTO graph for plotted history of the recorded values - Real time scale level chart - Display Current, Average/Leq, and Max values with both nice and clear digital and analog layouts - Quick reference text to help you compare with real-life examples - "Keep Device Stay Awake" option for long duration recording - Reset and clear current recording at any time - Tap on Max value to reset at any time - Pause/Resume the tool at any time NOTES: - Please do not expect a quiet room reading will be 0 dBA. The range 30-130 dBA is the standard usable range and an average quiet room will be about 30 dBA. - Although all devices are pre-calibrated, custom calibration is suggested for serious purposes requiring higher precision and accuracy. You will need a real external device or calibrated sound meter as a reference, then adjust the trimming calibration until the reading matches with the reference. * Choose from different subscription options. Our standard subscription options are: 1-month Subscription 1-year Subscription * Subscription payments will be charged to your iTunes account at confirmation of your purchase and upon commencement of each renewal term. Subscription with a free trial period will automatically renew to a paid subscription. You can cancel your subscription or free trial in the iTunes settings at least 24-hours before the end of the free trial period. The cancellation will take effect the day after the last day of the current subscription period and you will be downgraded to the free service. * Please note: any unused portion of a free trial period (if offered) will be forfeited when you purchase a premium subscription during the free trial period. * Privacy Policy: http://www.skypaw.com/decibelx/privacy_policy.html * EULA: http://www.skypaw.com/decibelx/terms.html

Latest Version

9.9.4

Size

23.5 MB

First Released

Jul 10, 2017

Master Your Environment with Pro-Grade Precision

Join 300K+ users who trust Decibel X PRO for pre-calibrated accuracy, OSHA-standard reporting, and seamless Apple Health integration. Download the ultimate SPL meter today.

Download on App Store