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.
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.
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
More3 issues
Crashes on launch after recent update
Inability to open app on iPhone 6S and newer devices
6 requests
Add video recording with live dB overlay
Improve readability of frequency scale
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.
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.
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.
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.
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.
