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Best Noise Decibel Meter Apps

249+ iOS apps curated and reviewed

4.5 avg rating
20 free apps
Updated August 2026

Every iPhone needs a few good noise decibel meter apps. We benchmark 249+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top Noise Decibel Meter Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1NIOSH Sound Level MeterNIOSH Sound Level MeterFree4.7★ (17K)NoNoAug 2026
2Decibel Meter Sound DetectorDecibel Meter Sound DetectorFree4.7★ (54K)NoYesAug 2026
3Decibel Meter: Sound dBDecibel Meter: Sound dBFree4.3★ (303)YesYesAug 2026
4Decibel X:dB Sound Level MeterDecibel X:dB Sound Level MeterFree4.6★ (161K)NoYesAug 2026
5Decibel Meter - dB Noise LevelDecibel Meter - dB Noise LevelFree4.8★ (50)NoYesAug 2026
6Noise Meter - Sound & DecibelNoise Meter - Sound & DecibelFree—YesNoAug 2026
7Noise Decibel MeterNoise Decibel MeterFree4.7★ (43)YesNoAug 2026
8Noise Decibel Meter - dB MeterNoise Decibel Meter - dB MeterFree—YesYesMay 2026

Top Picks for Noise Decibel Meter

NIOSH Sound Level Meter#1

NIOSH Sound Level Meter by EA LAB

Editor's Choice
🔧 Utilities
4.7😊(17K 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
Decibel Meter Sound Detector#2

Decibel Meter Sound Detector by Ashraf Thoppukadavil

Track noise around you.
Strong Contender
📊 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 Meter: Sound dB#3

Decibel Meter: Sound dB by OV MEDIA

Noise Level Tracker & SPL App
Worth Considering
🔧 Utilities
4.3😊(303 ratings)
FreeAdsIn-App Purchases
Decibel Meter: Sound dB screenshot 1
Decibel Meter: Sound dB screenshot 2
Decibel Meter: Sound dB screenshot 3
Decibel Meter: Sound dB screenshot 4
Decibel Meter: Sound dB screenshot 5

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.

What We Love

  • 👍 Accurate measurements
  • 🚀 Easy to use
  • 📊 Detailed data tracking
  • 🔔 Helpful alerts

Room to Improve

  • 💰 Expensive subscription
  • 🐛 Inconsistent readings
  • 🤔 Questionable accuracy

More Noise Decibel Meter apps to explore

4
Decibel X:dB Sound Level Meter
Decibel X:dB Sound Level Meter
Decibel X:dB Sound Level Meter
Frequency Spectrum Analyzer
Free

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.

Precise sound pressure level measurementFrequency spectrum analysis (FFT, BAR graphs)Historical data recording and export
🔧 Utilities
(161K)
free with in-app purchases
5
Decibel Meter - dB Noise Level
Decibel Meter - dB Noise Level
Decibel Meter - dB Noise Level
NIOSH & OSHA Measuring Tool
Free

This tool transforms your iPhone into a real-time sound level meter. It measures and displays environmental noise in decibels, helping you monitor sound at home, work, or outdoors. Protect your hearing by detecting loud noises and staying aware of your sound environment.

Real-time decibel measurementDynamic graph displayMin/Max/Average sound levels
🔧 Utilities
(50)
free with in-app purchases
6
Noise Meter - Sound & Decibel
Noise Meter - Sound & Decibel
Noise Meter - Sound & Decibel
Decibel sound level meter
Free
🔧 Utilities
(0)
7
Noise Decibel Meter
Noise Decibel Meter
Noise Decibel Meter
noise decibel meter tool
Free

Measure real-time, maximum, and average decibel levels. Record data from each test and keep the screen on for continuous monitoring. Features a simple and intuitive interface.

Real-time decibel measurementMaximum decibel trackingAverage decibel calculation
🔧 Utilities
(43)
ad-supported
8
Noise Decibel Meter - dB Meter
Noise Decibel Meter - dB Meter
Noise Decibel Meter - dB Meter
Noise Meter - Pro Decibel Test
Free
🔧 Utilities
(0)
9
Impulse Noise Decibel Meter
Impulse Noise Decibel Meter
Impulse Noise Decibel Meter
by Tigran Mkhitaryan
Free
🔧 Utilities
(0)
10
Decibel Meter: Noise Recorder
Decibel Meter: Noise Recorder
Decibel Meter: Noise Recorder
dB Noise Level & Hearing Guard
Free
🔧 Utilities
(0)
11
Decibel Meter: Noise dB
Decibel Meter: Noise dB
Decibel Meter: Noise dB
Noise Level & SPL Analyzer
Free
🔧 Utilities
(0)
12
NoiseLog – Decibel Meter
NoiseLog – Decibel Meter
NoiseLog – Decibel Meter
Sound Level Tracker & Logger
Free
🔧 Utilities
(0)
13
NoiseCheck: Decibel Meter
NoiseCheck: Decibel Meter
NoiseCheck: Decibel Meter
Sound Level & Noise Meter
Free
🔧 Utilities
(0)
14
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
15
Easy Sound Meter
Easy Sound Meter
Easy Sound Meter
Decibel Meter & Noise Monitor
Free
🔧 Utilities
(0)
16
Decibel Meter: Sound Level dB
Decibel Meter: Sound Level dB
Decibel Meter: Sound Level dB
Noise & dB Sound Level Meter
Free
🔧 Utilities
(0)
17
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
18
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
19
Decibel Meter™
Decibel Meter™
Decibel Meter™
by Appios Bilisim
Free
🔧 Utilities
(0)
20
Decibel Meter Pro – Sound dB
Decibel Meter Pro – Sound dB
Decibel Meter Pro – Sound dB
Sound Level & Noise Meter
Free
🔧 Utilities
(0)

FAQ about Noise Decibel Meter

What are the best noise decibel meter apps for iPhone?
NIOSH Sound Level Meter tops our noise decibel meter apps ranking as of August 2026, with a 4.7-star average from 17K App Store ratings, and it's free to download.
Yes — 20 of the top noise decibel meter apps we rank are free to download, including NIOSH Sound Level Meter and Decibel Meter Sound Detector.
NIOSH Sound Level Meter has no ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 249+ noise decibel meter apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
This app functions as a professional sound level meter and noise dosimeter, allowing you to measure ambient noise levels and assess noise exposure. It provides key metrics like LAeq, TWA, Max, and Peak levels, as well as noise dose calculations according to NIOSH and OSHA standards.
The app has been tested and validated for accuracy, with a tolerance of ± 2 dBA, according to standards in a reverberant chamber at the NIOSH acoustics lab. When used with an external microphone, it meets Type 2 requirements of the IEC 61672:3 SLM standard.

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