Best Measure Decibels Sound Apps

230+ iOS apps curated and reviewed

4.4 avg rating
17 free apps
Updated June 2026

Looking for free measure decibels sound apps? 17 of our 230+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Top Picks for Measure Decibels Sound

Sound Meter (Decibel)#1

Sound Meter (Decibel) by Unicom TOV

Measure the noise level
Editor's Choice
🔧 Utilities
4.6😐(2.6K ratings)
FreeAds
Sound Meter (Decibel) screenshot 1
Sound Meter (Decibel) screenshot 2
Sound Meter (Decibel) screenshot 3
Sound Meter (Decibel) screenshot 4
Sound Meter (Decibel) screenshot 5
Sound Meter (Decibel) screenshot 6

This application measures and displays environmental noise levels in decibels. It offers various visual representations of the data, including gauges, graphs, and numerical readouts. Users can also save their measurement history.

What We Love

  • 🚀 Works perfectly
  • 👍 Easy to use and free
  • 👍 Good simple UI
  • 👍 Good basic sound level meter

Room to Improve

  • 🐛 Spelling mistake ('quiet' spelled as 'quite')
  • 🐛 Inaccurate readings compared to other apps
  • 🐛 Requires a subscription for basic recording
Decibel X:dB Sound Level Meter#2

Decibel X:dB Sound Level Meter by SkyPaw Co., Limited

Frequency Spectrum Analyzer
Strong Contender
🔧 Utilities
4.7😐(156K ratings)
FreeIn-App Purchases
Decibel X:dB Sound Level Meter screenshot 1
Decibel X:dB Sound Level Meter screenshot 2
Decibel X:dB Sound Level Meter screenshot 3
Decibel X:dB Sound Level Meter screenshot 4
Decibel X:dB Sound Level Meter screenshot 5
Decibel X:dB Sound Level Meter screenshot 6

This app transforms your device into a professional sound level meter, precisely measuring ambient noise pressure. It offers advanced features like frequency analysis, historical data management, and dosimeter functions, making it useful for various applications and entertainment.

What We Love

  • ⭐ Excellent app
  • 👍 Easy to use and understand
  • 🔍 Useful for various applications
  • 🎓 Helpful for hearing protection

Room to Improve

  • 💰 Expensive subscription model
  • 🔒 Misleading free trial
  • 📢 Intrusive ads
NIOSH Sound Level Meter#3

NIOSH Sound Level Meter by EA LAB d.o.o.

Worth Considering
🔧 Utilities
4.7😊(16K ratings)
Free
NIOSH Sound Level Meter screenshot 1
NIOSH Sound Level Meter screenshot 2
NIOSH Sound Level Meter screenshot 3
NIOSH Sound Level Meter screenshot 4
NIOSH Sound Level Meter screenshot 5

This free app measures sound levels and noise exposure using your smartphone. Developed by acoustics experts, it provides professional-grade metrics and guidance on hearing protection and noise prevention.

What We Love

  • 🚀 Free and ad-free
  • 👍 Simple and intuitive interface
  • ⚖️ Accurate and reliable measurements
  • 💡 Useful for monitoring noise levels in various environments

Room to Improve

  • 🐛 Occasional bugs and crashes
  • 🔌 Issues with external microphone support
  • 🔋 Can drain battery when running for extended periods

More Measure Decibels Sound apps to explore

4
Decibel Meter - Sound Meter
Decibel Meter - Sound Meter
Decibel Meter - Sound Meter
Sound measurement tool.
Free

Transform your smartphone into a precise sound measuring device. This app uses your phone's microphone to display real-time decibel levels with clear descriptions. Analyze sound over time, calibrate for accuracy, and share your findings easily.

Real-time decibel measurementMin, average, and max sound levelsApple Watch integration
🔧 Utilities
(222)
free with in-app purchases
5
Sound Meter HQ
Sound Meter HQ
Sound Meter HQ
Measure noise and sound level
Free

This application measures noise and sound levels using your device's microphone. It displays results in decibels on a logarithmic graph and allows for calibration to ensure accuracy. You can record minimum, average, and maximum sound levels.

Measure sound levelVibration meterNoise detector
🔧 Utilities
(327)
free with in-app purchases
6
Decibel Meter Master
Decibel Meter Master
Decibel Meter Master
Tool for measuring sound level
Free

This tool transforms your iPhone into a professional sound level meter. It accurately measures ambient noise levels, providing real-time decibel readings directly on your device.

Measures sound levelActs as a decibel meterUses iPhone as a meter
🔧 Utilities
(2.9K)
free
7
Decibel Meter: dB Sound Meters
Decibel Meter: dB Sound Meters
Decibel Meter: dB Sound Meters
dB Sound Test and Noise Meter
Free

Transform your phone into a professional sound level meter to measure decibel and hertz levels in real-time. Track environmental noise, set custom alerts for safe sound thresholds, and log data for later review. Features include graphical analysis and calibration options for accuracy.

Real-time sound level measurementGraphical and frequency analysisCustomizable sound alerts
🔧 Utilities
(37)
free with in-app purchases
8
Sound & Decibel Meter - dBScan
Sound & Decibel Meter - dBScan
Sound & Decibel Meter - dBScan
Noise Level Meter & Measure
Free

This application transforms your device into a real-time sound level meter. It accurately measures and analyzes ambient noise in decibels and frequency, helping you monitor your surroundings and maintain safe sound levels.

Real-time noise level measurementDecibel (dB) monitoringFrequency analysis
🔧 Utilities
(1)
free with in-app purchases
9
AudioTools, dB, Sound & Audio
AudioTools, dB, Sound & Audio
AudioTools, dB, Sound & Audio
RTA, Acoustics Measurement SPL
$19.99

This professional audio analysis app offers a comprehensive suite of tools for acoustic measurements, including SPL, RTA, and FFT. It calibrates device microphones for accurate results and allows for the addition of powerful optional modules for advanced analysis.

SPL Meter with A/C weightingReal Time Analyzer (RTA)Fast Fourier Transform (FFT) analysis
🎵 Music
(5K)
free with in-app purchases
10
Decibel Meter - Sound Level.
Decibel Meter - Sound Level.
Decibel Meter - Sound Level.
Measure Noise & Frequency
Free
🔧 Utilities
(0)
11
Measure Decibels
Measure Decibels
Measure Decibels
Sound Meter Noise Level SPL
Free

This utility transforms your device into a professional sound meter, offering real-time decibel readings and frequency analysis. It helps you monitor noise levels for safety, acoustic testing, or general curiosity, with historical data tracking for environmental changes.

Professional SPL meterReal-time noise level detectorFrequency analyzer
🔧 Utilities
(3)
free
12
Decibel Meter-measure db level
Decibel Meter-measure db level
Decibel Meter-measure db level
Frequency Spectrum Analyzer
Free

Transform your phone into a professional-grade decibel meter for real-time noise detection. Features advanced algorithms, noise visualization, and recording capabilities for comprehensive sound analysis.

Military-grade algorithmProfessional GB weighted detectionNoise recording
🔧 Utilities
(905)
free with in-app purchases
13
Decibel X PRO: dBA Noise Meter
Decibel X PRO: dBA Noise Meter
Decibel X PRO: dBA Noise Meter
Frequency Spectrum Analyzer
$69.99

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 meterdBA and dBC measurementsFrequency spectrum analysis (FFT, BAR graphs)
🔧 Utilities
(6.9K)
paid
14
Decibels: dB Sound Level Meter
Decibels: dB Sound Level Meter
Decibels: dB Sound Level Meter
Analyze audio with style
Free

Measure and analyze ambient noise levels with a stylish interface. Capture photos with sound level data, and share or print your findings. Enhance analysis with advanced features like frequency weighting and chart recording through an in-app purchase.

Analog dB(A) displayPhoto with sound levelShare/print/store photos
🔧 Utilities
(221)
free with in-app purchases
15
Decibel Meter: Sound dB
Decibel Meter: Sound dB
Decibel Meter: Sound dB
Accurate and convenient
Free

Transform your device into a professional decibel meter to measure and track sound levels in real-time. Save measurements, view history charts, and set custom alerts for excessive noise. Useful for documenting sound exposure or identifying noise sources.

Real-time decibel meterSave and export noise measurementsNoise history charts
🔧 Utilities
(289)
free with in-app purchases
16
Decibels: Sound Level dB Meter
Decibels: Sound Level dB Meter
Decibels: Sound Level dB Meter
Sound exposure level db meter
Free

Measure sound levels in decibels using your device's microphone. View real-time graphs and historical data to detect noise pollution and protect your hearing. Calibrate for accurate readings across various environments.

Measures sound in decibels (dB)Displays sound samples on a graphDetects loud and low environmental noise
🔧 Utilities
(22)
free with in-app purchases
17
dB Noise Meter
dB Noise Meter
dB Noise Meter
Sound Meter, measure decibels
Free

Measure ambient noise levels in decibels (dB) using your phone's microphone. Track real-time noise, identify loud appliances, and monitor your exposure to potentially harmful sound levels.

Real-time decibel measurementNoise level trackingAppliance noise testing
🔧 Utilities
(111)
free with in-app purchases
18
Decibel Meter - Sound Detector
Decibel Meter - Sound Detector
Decibel Meter - Sound Detector
Noise and Volume Measurement
Free

This tool transforms your device into a professional sound level meter. It offers accurate, pre-calibrated measurements for various environments, from quiet rooms to loud stadiums. Integrate with health apps to track vibrations and analyze noise levels for personal or professional use.

Professional sound level meterIntegrated spectrum analyzerHearing test and audiogram
🔧 Utilities
(17)
subscription
19
dB Meter & Spectrum Analyzer
dB Meter & Spectrum Analyzer
dB Meter & Spectrum Analyzer
Noise & sound level decibel
$29.99

Measure ambient noise levels with professional-quality accuracy. This app offers a spectrum analyzer, hearing test, and the ability to save and share measurements with location data. It's a powerful, cost-effective tool for personal sound monitoring.

Professional-quality sound level measurementIntegrated spectrum analyzerNoise dosimeter (NIOSH/OSHA)
🔧 Utilities
(858)
free with in-app purchases
20
dB meter lite - noise measure
dB meter lite - noise measure
dB meter lite - noise measure
Noise decibel meter
Free

This application measures sound levels in decibels using your device's microphone. It displays current, peak, and maximum SPL levels, with options to save measurements and view historical data through a graph histogram. The app allows for self-calibration to ensure accuracy.

Measure current, peak, and maximum SPLGraph histogram for SPL changesSave sound level measurements
🔧 Utilities
(308)
free with in-app purchases