Best Sound Decibel Meter Free Apps

237+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated July 2026

Whether you're new to sound decibel meter free or looking for an upgrade, our curated collection of 237+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Compare top Sound Decibel Meter Free Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Sound Meter (Decibel)Sound Meter (Decibel)Free4.6★ (2.6K)YesNoJul 2026
2Decibel Meter Sound DetectorDecibel Meter Sound DetectorFree4.7★ (48K)NoYesJul 2026
3Decibel X:dB Sound Level MeterDecibel X:dB Sound Level MeterFree4.7★ (156K)NoYesJul 2026
4NIOSH Sound Level MeterNIOSH Sound Level MeterFree4.7★ (16K)NoNoJul 2026
5Decibel Meter dB (Sound Meter)Decibel Meter dB (Sound Meter)Free4.4★ (1.2K)YesYesJul 2026
6Decibel : dB sound level meterDecibel : dB sound level meterFree4.6★ (36K)YesYesJul 2026
7Decibelmeter - dBDecibelmeter - dBFree4.6★ (706)YesYesJul 2026
8Decibel Metre (Sound Meter)Decibel Metre (Sound Meter)Free4.5★ (577)YesNoJul 2026

Top Picks for Sound Decibel Meter Free

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 Meter Sound Detector#2

Decibel Meter Sound Detector by Ashraf Thoppukadavil

Track noise around you.
Strong Contender
📊 Productivity
4.7😊(48K ratings)
FreeIn-App Purchases
Decibel Meter Sound Detector screenshot 1
Decibel Meter Sound Detector screenshot 2
Decibel Meter Sound Detector screenshot 3
Decibel Meter Sound Detector screenshot 4

Monitor your surroundings with this decibel meter app. It measures sound levels in real-time, providing clear visual analysis and advanced filtering options. Easily share your readings for documentation or further analysis.

What We Love

  • 👍 No bloatware
  • 👍 Quite useful
  • 👍 Excellent and useful app
  • 👍 Easy to use

Room to Improve

  • 🐛 Ads block settings
  • 🐛 Inaccurate readings
  • 🐛 Not sensitive at all
Decibel X:dB Sound Level Meter#3

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

Frequency Spectrum Analyzer
Worth Considering
🔧 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

More Sound Decibel Meter Free apps to explore

4
NIOSH Sound Level Meter
NIOSH Sound Level Meter
NIOSH Sound Level Meter
by EA LAB d.o.o.
Free

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.

Sound level measurementNoise dosimetryHearing hazard information
🔧 Utilities
(16K)
free
5
Decibel Meter dB (Sound Meter)
Decibel Meter dB (Sound Meter)
Decibel Meter dB (Sound Meter)
Noise Level Analyzer + Measure
Free

Measure sound volume in real-time with this app. It provides precise decibel readings, a visual timeline of sound fluctuations, and customizable calibration for accurate results. Ideal for monitoring noise levels in various environments.

Accurate sound measurements in decibels (dB)Real-time volume displayVolume timeline for trend analysis
🔧 Utilities
(1.2K)
free with in-app purchases
6
Decibel : dB sound level meter
Decibel : dB sound level meter
Decibel : dB sound level meter
Audio noise Spectrum Analyzer
Free

Transform your device into a professional sound level meter and audio analyzer. Measure ambient noise, monitor decibel levels, and visualize sound frequencies in real time. It also offers advanced sleep tracking with sound recognition to identify disruptions.

Real-time decibel (dB) sound level monitoringIntegrated Spectrum Analyzer (FFT, spectrogram)Sleep tracking with sound recognition
🔧 Utilities
(36K)
freemium
7
Decibelmeter - dB
Decibelmeter - dB
Decibelmeter - dB
Meet geluid met gemak
Free

Easily measure sound levels with this accurate and intuitive tool. It displays current, maximum, and average decibel values, along with a graphical overview for quick comprehension. This utility is completely free to use.

Simple and easy to useQuick and accurate dB measuringAll-in-one meter
🔧 Utilities
(706)
free with in-app purchases
8
Decibel Metre (Sound Meter)
Decibel Metre (Sound Meter)
Decibel Metre (Sound Meter)
Measure the environment noise
Free

This application functions as a smart sound level meter, utilizing your device's microphone to measure ambient noise in decibels (dBA). It provides real-time readings on a digital screen and displays historical data through a graph. The app also shows reference noise levels and tracks minimum, average, and maximum decibel values.

Measures sound level in decibels (dBA)Uses built-in microphoneDisplays readings on digital screen
🔧 Utilities
(577)
ad-supported
9
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
10
Decibel Meter Ultra
Decibel Meter Ultra
Decibel Meter Ultra
Noise Level Frequency Analyzer
Free

Measure, record, and analyze sound levels in your environment. This app offers precision metering, noise elimination tools, hearing protection features, and home audio calibration. It provides detailed reports and can be used with device microphones or external ones.

Precision sound level meteringNoise logging and reportingHearing protection dosimeter
🔧 Utilities
(2.3K)
free with in-app purchases
11
Decibel - Accurate dB Meter
Decibel - Accurate dB Meter
Decibel - Accurate dB Meter
by 祥祎 刘
Free

Transform your device into a professional sound meter to accurately measure ambient noise levels. Understand how loud your surroundings are, from quiet rooms to loud events, and learn about potential hearing risks.

Accurate sound pressure level measurementMeasures decibels (dB)Provides real-time sound intensity readings
🔧 Utilities
(470)
free
12
Sound Decibel Meter+
Sound Decibel Meter+
Sound Decibel Meter+
Noise Level & Loudness
Free

Instantly measure sound levels and understand noise pollution with this smart decibel meter. It provides real-time dB readings, safety insights, and context for everyday sounds to help protect your hearing.

Real-time dB readingsLive waveform visualizationNoise interpretation and safety insights
🔧 Utilities
(2)
freemium
13
Decibel - sound level meter
Decibel - sound level meter
Decibel - sound level meter
Noize analyzer
Free

Measure and analyze the sound pressure around you. Compare your recordings to a reference chart to understand noise levels, from normal conversations to rocket launches. Unlock advanced features like audio recording saving and active screen history with a subscription.

Measure sound pressureCompare to reference chartAnalyze noise levels
🔧 Utilities
(409)
subscription
14
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
15
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
16
Sound Meter - Decibel Meter !
Sound Meter - Decibel Meter !
Sound Meter - Decibel Meter !
Sound Level Meter - dB Meter
Free

This application utilizes your device's microphone to measure ambient noise levels in decibels (dB). It displays current, minimum, average, and maximum readings, and presents data through a gauge and graph for easy comprehension. It serves as a tool to detect and understand environmental noise.

Measures noise in decibels (dB)Displays current, min, avg, max valuesVisualizes decibel levels with a gauge
🔧 Utilities
(2)
free
17
Decibel - sound level meter
Decibel - sound level meter
Decibel - sound level meter
Spectrum frequency analyzer
Free

Measure and analyze the sound pressure around you with this app. It provides spectrum frequency analysis and allows you to compare your recordings to a reference chart. Save your measurement history for future reference.

Measure sound pressureSpectrum frequency analysisReference chart comparison
🔧 Utilities
(4.5K)
subscription
18
Decibel Meter°
Decibel Meter°
Decibel Meter°
dB Checker & Sound Analyzer
Free
🔧 Utilities
(0)
19
Decibel Meter: Sound Meter dB
Decibel Meter: Sound Meter dB
Decibel Meter: Sound Meter dB
Sound meter with noise level
Free

Measure environmental sound levels and display decibel values with detailed information. Track histories, view noise references, and pause/resume measurements easily. Offers a clear graphical representation of sound intensity.

Measure sound levelsDisplay min/avg/max decibel valuesGraphical decibel display
🔧 Utilities
(7)
ad-supported
20
Decibel Shield - dB Meter
Decibel Shield - dB Meter
Decibel Shield - dB Meter
Measure Noise & Sound Levels
Free

Measure and track sound levels in real-time with this user-friendly decibel meter. Log historical data, integrate with Apple Health, and gain insights into your sound environment. Includes a white noise generator for focused listening.

Real-time decibel monitoringHistorical data trackingApple Health integration
🔧 Utilities
(468)
free with in-app purchases

FAQ about Sound Decibel Meter Free

What are the best sound decibel meter free apps for iPhone?
Sound Meter (Decibel) tops our sound decibel meter free apps ranking as of July 2026, with a 4.6-star average from 2.6K App Store ratings, and it's free to download.
Sound Meter (Decibel) shows ads and has no in-app purchases, according to its App Store listing as of July 2026.
We track 237+ sound decibel meter free apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
The Sound Meter app measures and displays the decibel (dB) values of environmental noise. It presents this data through various visual formats like gauges, graphs, and numerical readouts, allowing users to understand the noise levels around them.
Key features include indicating decibel levels by a gauge, displaying the current noise reference, showing minimum, average, and maximum decibel values, presenting decibels via a graph line, and the ability to save measured records for later review.