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Decibel X PRO: dBA Noise Meter

Decibel X PRO: dBA Noise Meter

Frequency Spectrum Analyzer

6.9K ratings
255 reviews
📚 Education
🔧 Utilities
$69.99

Details

  • Released
  • Updated

Features

Developer

SkyPaw Co., Limited
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Decibel X PRO: dBA Noise Meter screenshot #1 for iPhone
Decibel X PRO: dBA Noise Meter screenshot #2 for iPhone
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Decibel X PRO: dBA Noise Meter screenshot #7 for iPhone
Decibel X PRO: dBA Noise Meter screenshot #8 for iPhone
Decibel X PRO: dBA Noise Meter screenshot #9 for iPhone
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About

This application transforms your device into a professional sound level meter, offering precise dBA and dBC measurements. It features advanced analysis tools like frequency spectrum analysis and data export, making it ideal for audio professionals and anyone interested in sound environments.

✓Professional sound level meter
✓dBA and dBC measurements
✓Frequency spectrum analysis (FFT, BAR graphs)
✓Data logging and export (PNG, CSV)
✓Apple Watch support
✓Health App integration
✓Dosimeter with NIOSH, OSHA standards
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What users say

Summarized from real user reviews of Decibel X PRO. Based on 6.9K reviews and a 4.7/5 average, it highlights the 8 positives and 7 negatives reviewers mention most about this Utilities app.

Positive things

  • 👍Works well
  • 🚀Keeps getting better with updates
  • 💡Useful for monitoring noise levels
  • 💡Helps protect hearing
  • 👍Accurate measurements
  • 👍Intuitive and easy to use
  • 👍Solid sound meter app
  • 👍Meets expectations

Negative things

  • 🐛Data transfer issues between devices
  • 🐛Crashes and stability issues
  • 🐛Camera crashes
  • 🐛Bugs with dark mode and language settings
  • 🐛Inconsistent readings compared to other apps
  • 🐛Inability to rotate screen
  • 🐛Ads and frequent rating prompts in paid version
See all reviews

What's New in Decibel X PRO

9.9.5

March 17, 2026

Thanks for using Decibel X! Here's what's new for the version 9.9.5: ∿ [Fixes] - Fix an issue with restoring purchases in paywall screen ∿ [Fixes] - Fix an UI issue for the bottom tab bar ∿ [Improvements] - Support for new devices ∿ [Improvements] - Upgrade library components ∿ [Improvements] - Several other minor tweaks & bug fixes What to expect in upcoming versions: ∿ Support external or bluetooth mics ∿ Hearing test

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User reviews

Most RecentHighest RatedLowest Rated

G

Excellent
piratedesardegnapiratedesardegna

Response from developer

Thank you for sharing your reviews with us. Your reviews are our motivation to further improve Decibel X.

Cool

It’s helpful for analyzing a stereo setup until the microphone limitations kick in. You’d make make ton$ with a good microphone.
LockersmellLockersmell

It works well

I use this for both professional and personal projects. It’s fairly accurate as far as I can tell.
Copier guy 123Copier guy 123

This is the app!

Don’t bother with anything else. I can’t think of anything else you would want in a decibel meter.
Sergeant762Sergeant762

横画面

iPadで使用時、横画面での表示がおかしくなる場合がある。iPad OS 26以降。
sarryyyyyyysarryyyyyyy

Response from developer

Hi, sarryyyyyyy! Thank you for your feedback. Have you tried the latest update? If it still doesn't work, could you contact us at contact@skypaw.com so we can work together to figure it out? With our user-obsessed mentality, we shall continue to leverage and level up our standard features and advance ones based on users' needs.

See 250 more reviews

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User experience

🐞

Reported Bugs

3 issues

Crashes on launch after recent update

Bug

Inability to open app on iPhone 6S and newer devices

Bug

Incorrect or unreadable data display on iPad

Bug
✨

Requested Features

6 requests

Add video recording with live dB overlay

Feature

Improve readability of frequency scale

Feature

Include dBC measurements

Feature

Add alarm for exceeding noise thresholds

Feature

Provide more detailed documentation and support

Feature

Improve cloud/iCloud sync and data management

Feature

FAQ

What does Decibel X PRO do?

Decibel X PRO turns your iOS device into a professional sound level meter. It precisely measures the sound pressure level (SPL) around you, supporting dBA and dBC measurements. The app also offers advanced features like frequency spectrum analysis and data logging.

What are the key features of Decibel X PRO?

Key features include trusted accuracy with pre-calibrated measurements, Apple Watch support, Health App integration, frequency weighting filters (ITU-R 468, A, B, C, Z), powerful history data management with export options, dosimeter functionality, and real-time FFT and BAR graphs for frequency analysis.

How much does Decibel X PRO cost?

Decibel X PRO is a paid application. The provided data indicates it does not have in-app purchases or ads, suggesting a one-time purchase for the full functionality.

Is Decibel X PRO compatible with my device?

The application is optimized for iOS 11 and is designed for iOS devices. It also offers Apple Watch support for convenient on-wrist monitoring of noise levels.

Who would benefit from using Decibel X PRO?

This app is primarily beneficial for audio experts and workers who are prone to noise pollution, as it provides professional-grade measurements. It can also be used by anyone curious about their surroundings' noise levels, for entertainment, or for hearing protection purposes.