Best Db Meter Free Apps

242+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated July 2026

Out of 242+ db meter free apps on iOS, 20 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Db Meter Free Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Decibel Meter Sound DetectorDecibel Meter Sound DetectorFree4.7★ (54K)NoYesAug 2026
2Decibel X:dB Sound Level MeterDecibel X:dB Sound Level MeterFree4.7★ (160K)NoYesAug 2026
3Decibel : dB sound level meterDecibel : dB sound level meterFree4.6★ (36K)NoYesAug 2026
4Sound Meter (Decibel)Sound Meter (Decibel)Free4.5★ (3.1K)YesNoAug 2026
5NIOSH Sound Level MeterNIOSH Sound Level MeterFree4.7★ (17K)NoNoAug 2026
6dB Meter Sound Level MeterdB Meter Sound Level MeterFree4.8★ (251)YesNoAug 2026
7Decibel - sound level meterDecibel - sound level meterFree4.6★ (4.5K)NoYesAug 2026
8Decibel Meter dB (Sound Meter)Decibel Meter dB (Sound Meter)Free4.4★ (1.3K)YesYesAug 2026

Top Picks for Db Meter Free

Decibel Meter Sound Detector#1

Decibel Meter Sound Detector by Ashraf Thoppukadavil

Track noise around you.
Editor's Choice
📊 Productivity
4.7😊(54K 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#2

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

Frequency Spectrum Analyzer
Strong Contender
🔧 Utilities
4.7😐(160K 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
Decibel : dB sound level meter#3

Decibel : dB sound level meter by Vlad Polyanskiy

Audio noise Spectrum Analyzer
Worth Considering
🔧 Utilities
4.6😐(36K ratings)
FreeIn-App Purchases
Decibel : dB sound level meter screenshot 1
Decibel : dB sound level meter screenshot 2
Decibel : dB sound level meter screenshot 3
Decibel : dB sound level meter screenshot 4
Decibel : dB sound level meter screenshot 5
Decibel : dB sound level meter screenshot 6

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.

What We Love

  • 👍 Useful for monitoring noise levels
  • 🔍 Accurate for a phone app
  • 🔧 Good for calibrating audio equipment
  • 💡 Helpful for hearing protection

Room to Improve

  • 💰 Aggressive upselling tactics
  • 🔒 Privacy concerns around data collection
  • 🕹️ Confusing free vs paid options

More Db Meter Free apps to explore

4
Sound Meter (Decibel)
Sound Meter (Decibel)
Sound Meter (Decibel)
Measure the noise level
Free

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.

Measures decibel valuesDisplays noise referenceShows min/avg/max dB
🔧 Utilities
(3.1K)
ad-supported
5
NIOSH Sound Level Meter
NIOSH Sound Level Meter
NIOSH Sound Level Meter
by EA LAB
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
(17K)
free
6
dB Meter Sound Level Meter
dB Meter Sound Level Meter
dB Meter Sound Level Meter
Simple noise decibel meter
Free

Measure ambient noise levels in decibels (dB) with this straightforward tool. It displays real-time sound volume in a large, easy-to-read format and allows you to track minimum, average, and maximum values. Customize the background and text colors for a personalized experience.

Real-time decibel measurementMin, average, and max value calculationStop and reset function
🌟 Lifestyle
(251)
ad-supported
7
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
8
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
(1.3K)
free with in-app purchases
9
Decibel Meter Ultra
Decibel Meter Ultra
Decibel Meter Ultra
Measure Sound and Noise Levels
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
(2.4K)
free with in-app purchases
10
Sound Meter (dB) - dBShift
Sound Meter (dB) - dBShift
Sound Meter (dB) - dBShift
Quick Sound Analyzer
Free

Analyze and record sound levels in real-time with precise decibel readings. Monitor your auditory environment, set custom alerts for exceeding thresholds, and track historical data for insights into audio patterns. Ideal for professionals and curious individuals alike.

Real-time decibel measurementAudio recording with sound level correlationGraphical sound intensity analysis
🎵 Music
(33)
freemium
11
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
12
dB Meter: Noise & Decibel
dB Meter: Noise & Decibel
dB Meter: Noise & Decibel
Calibrate, record, export dB
Free

Measure real-time sound levels, monitor noise, and log environmental audio. Features include calibration, threshold alerts, audio recording, and frequency analysis. Ideal for quick checks at home, office, or studio.

Real-time dB meter with live chartCalibration offsetThreshold alerts
🔧 Utilities
(7)
free
13
Decibel Meter- dB Noise TT
Decibel Meter- dB Noise TT
Decibel Meter- dB Noise TT
Decibel Noise tool
Free

This utility app measures environmental noise levels using your device's microphone. It helps users monitor sound intensity for hearing protection at home, work, or outdoors.

Measures environmental noise levelsMonitors sound intensityAids in hearing protection
🔧 Utilities
(0)
ad-supported
14
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
15
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
(261)
free with in-app purchases
16
dBMeter - Decibelmeter
dBMeter - Decibelmeter
dBMeter - Decibelmeter
Measure noise in real time
Free

This application precisely measures sound intensity in real time using your device's microphone. It displays minimum, maximum, and average decibel levels, offers a noise-time graph, and allows for microphone calibration. The tool is ideal for monitoring ambient noise in various environments and exporting data for analysis.

Real-time decibel measurementMin, max, and average valuesNoise-time graph
🔧 Utilities
(7)
ad-supported
17
Decibel Sound Meter | dB Level
Decibel Sound Meter | dB Level
Decibel Sound Meter | dB Level
Decibel Noise meter | dB Level
Free

Measure environmental noise levels and display decibel values in various formats. This smart sound meter app features a tidy graphic design and provides real-time noise detection using your mobile microphone. It offers clear visualizations of sound levels and includes helpful information about decibel measurements.

Measures environmental noise decibel valuesDisplays dB values in various formsTidy graphic design with high frame rate
📊 Productivity
(2)
free with in-app purchases
18
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
19
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
(52)
free with in-app purchases
20
Sound meter : SPL & dB meter
Sound meter : SPL & dB meter
Sound meter : SPL & dB meter
Decibel Meter: Sound Meter App
Free
🔧 Utilities
(0)

FAQ about Db Meter Free

What are the best db meter free apps for iPhone?
Decibel Meter Sound Detector tops our db meter free apps ranking as of July 2026, with a 4.7-star average from 54K App Store ratings, and it's free to download.
Decibel Meter Sound Detector has no ads and offers in-app purchases, according to its App Store listing as of July 2026.
We track 242+ db meter free apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
This app functions as a decibel meter, using your device's microphone to measure and display sound levels in decibels (dB) in real-time. It provides clear visual noise analysis and supports advanced filtering for frequency and dB ranges.
Key features include accurate dB measurements, various frequency weighting options (A, B, C, Z), the ability to share readings via email and messaging apps, 1/3 octave band frequency analysis, and display of current, average, and maximum sound values.