Decibel Meter Pro: Sound Level
Noise Detector & SPL Analyzer
About
Transform your device into a professional sound level meter. Analyze noise in dB, dBA, and dBC, view frequency spectrums, and understand your safe noise exposure limits. Record, prove, and share measurements with detailed reports and location data.
What's New in Decibel Meter Pro
2.0
October 29, 2026
• Snore & Sleep Talk Recorder: records snoring, sleep talking and coughing through the night, recognized on your device. Listen to each sound in the morning. • Tone Generator / Frequency Generator from 20 Hz to 20 kHz with a sine wave. Premium adds more waveforms, frequency sweep and a left/right speaker test. • Frequency Detector: see the exact Hz and musical note of any tone. • Apple Watch app: measure dBA with the watch microphone and get a vibration alert when it's too loud, or use your watch as the microphone for the iPhone sound level meter.
MoreSubscriptions & In-App Purchases
$2.99
Decibel Meter - Premium
No ads, background log, widgets, iCloud sync
Events
Snore recorder, tone generator & Apple Watch app
Oct 28, 2026 — Nov 28, 2026
Developer apps
FAQ
Does Decibel Meter Pro have ads?
Yes, Decibel Meter Pro contains advertisements. Users can remove ads and unlock additional features through a one-time premium purchase.
What is the price of Decibel Meter Pro?
Decibel Meter Pro is free to download and use. A one-time purchase is available to unlock premium features and remove ads.
What devices does Decibel Meter Pro support?
Decibel Meter Pro is available on iPhone, iPad, and Apple Watch, offering a versatile experience across Apple devices.
How accurate are the readings from Decibel Meter Pro?
Phone microphones are not certified instruments, so readings are estimates and can vary. Calibration is recommended for best accuracy.
Can I use Decibel Meter Pro offline?
The premium version allows for continued recording with the screen locked, suggesting some offline functionality. However, specific offline measurement capabilities are not detailed.
What are the premium features of Decibel Meter Pro?
Premium features include ad removal, screen-locked recording, a noise log, live dB on the Lock Screen and Dynamic Island, notifications for loud sounds, and iCloud sync.
How often is Decibel Meter Pro updated?
The app was last updated on October 29, 2026, indicating a recent update. Version 2.0 was released on June 17, 2026.
What is the age rating for Decibel Meter Pro?
Decibel Meter Pro has an age rating of 4+, making it suitable for a wide range of users.
