1. Home
  2. Topics
  3. Noise Level Meter Free

Best Noise Level Meter Free Apps

250+ iOS apps curated and reviewed

4.3 avg rating
20 free apps
Updated August 2026

Finding the right noise level meter free apps can be overwhelming with so many options. We've analyzed 250+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Compare top Noise Level Meter Free Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Sound Meter (Decibel)Sound Meter (Decibel)Free4.5β˜… (3.1K)YesNoAug 2026
2NIOSH Sound Level MeterNIOSH Sound Level MeterFree4.7β˜… (17K)NoNoAug 2026
3Decibel Meter: Sound dBDecibel Meter: Sound dBFree4.3β˜… (294)YesYesAug 2026
4Decibel X:dB Sound Level MeterDecibel X:dB Sound Level MeterFree4.7β˜… (160K)NoYesAug 2026
5Decibel Meter Sound DetectorDecibel Meter Sound DetectorFree4.7β˜… (54K)NoYesAug 2026
6Noise Meter - Sound & DecibelNoise Meter - Sound & DecibelFreeβ€”YesNoAug 2026
7Decibel Meter dB: Noise LevelDecibel Meter dB: Noise LevelFreeβ€”NoYesJul 2026
8Decibel : dB sound level meterDecibel : dB sound level meterFree4.6β˜… (36K)NoYesAug 2026

Top Picks for Noise Level Meter Free

Sound Meter (Decibel)#1

Sound Meter (Decibel) by UniCom Technology

Measure the noise level
Editor's Choice
πŸ”§ Utilities
4.5😐(3.1K 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

  • πŸš€ Works perfectly
  • πŸ‘ Easy to use and free
  • πŸ‘ Good simple UI
  • πŸ‘ Good basic sound level meter

Room to Improve

  • πŸ› Spelling mistake ('quiet' spelled as 'quite')
  • πŸ› Inaccurate readings compared to other apps
  • πŸ› Requires a subscription for basic recording
NIOSH Sound Level Meter#2

NIOSH Sound Level Meter by EA LAB

Strong Contender
πŸ”§ 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

  • πŸš€ Free and ad-free
  • πŸ‘ Simple and intuitive interface
  • βš–οΈ Accurate and reliable measurements
  • πŸ’‘ Useful for monitoring noise levels in various environments

Room to Improve

  • πŸ› Occasional bugs and crashes
  • πŸ”Œ Issues with external microphone support
  • πŸ”‹ Can drain battery when running for extended periods
Decibel Meter: Sound dB#3

Decibel Meter: Sound dB by OV MEDIA

Noise Level Tracker & SPL App
Worth Considering
πŸ”§ Utilities
4.3😊(294 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

  • πŸ‘ Accurate measurements
  • πŸš€ Easy to use
  • πŸ“Š Detailed data tracking
  • πŸ”” Helpful alerts

Room to Improve

  • πŸ’° Expensive subscription
  • πŸ› Inconsistent readings
  • πŸ€” Questionable accuracy

More Noise Level Meter Free 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
πŸ”§ Utilities
(160K)
free with in-app purchases
5
Decibel Meter Sound Detector
Decibel Meter Sound Detector
Decibel Meter Sound Detector
Track noise around you.
Free

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.

Real-time decibel (dB) readingsFrequency weighting (A, B, C, Z)Share measurements via various apps
πŸ“Š Productivity
(54K)
free with in-app purchases
6
Noise Meter - Sound & Decibel
Noise Meter - Sound & Decibel
Noise Meter - Sound & Decibel
Decibel sound level meter
Free
πŸ”§ Utilities
(0)
7
Decibel Meter dB: Noise Level
Decibel Meter dB: Noise Level
Decibel Meter dB: Noise Level
SPL, Sound & Frequency Test
Free
πŸ”§ Utilities
(0)
8
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
πŸ”§ Utilities
(36K)
freemium
9
Simple Noise Meter
Simple Noise Meter
Simple Noise Meter
Sound meter for noise check
Free

Measure ambient sound levels in decibels with this straightforward utility. It provides a simple interface to start, stop, and reset noise measurements, offering a supplementary tool for understanding your environment's acoustics.

Real-time decibel measurementStart, stop, and reset functionsCalibration for accuracy
πŸ”§ Utilities
(1)
free with in-app purchases
10
Decibel: dB Sound Meter
Decibel: dB Sound Meter
Decibel: dB Sound Meter
Noise Exposure & Daily Dose
Free

This app provides precise sound level measurements and audio analysis using professional weighting filters and real-time FFT spectrum analysis. It functions as a dosimeter for workplace safety and allows for easy sharing of dB data overlays on photos.

Professional Frequency Weighting (ITU-R 468, A/B/C/Z)Real-Time FFT Spectrum AnalysisNIOSH & OSHA Standard Dosimeter
🌟 Lifestyle
(2)
free with in-app purchases
11
dB Meter - Sound Level
dB Meter - Sound Level
dB Meter - Sound Level
by RAMAZAN USEN
Free
πŸ”§ Utilities
(0)
12
Sound Analyzer - dB Meter
Sound Analyzer - dB Meter
Sound Analyzer - dB Meter
Measure noise levels instantly
Free
πŸ”§ Utilities
(0)
13
Decibel Meter: Sound Level dB
Decibel Meter: Sound Level dB
Decibel Meter: Sound Level dB
Noise & dB Sound Level Meter
Free
πŸ”§ Utilities
(0)
14
Sound Meter - Noise Level dB
Sound Meter - Noise Level dB
Sound Meter - Noise Level dB
Decibel readings made simple
Free
πŸ”§ Utilities
(0)
15
dB Meter - Noise Analyzer
dB Meter - Noise Analyzer
dB Meter - Noise Analyzer
Live noise level & dB monitor
Free
πŸ”§ Utilities
(0)
16
NoiseLedger: dB Meter Log
NoiseLedger: dB Meter Log
NoiseLedger: dB Meter Log
Measure sound level, export
Free
πŸ”§ Utilities
(0)
17
Impulse Noise Decibel Meter
Impulse Noise Decibel Meter
Impulse Noise Decibel Meter
by Tigran Mkhitaryan
Free
πŸ”§ Utilities
(0)
18
dB Meter - Noise Level Meter
dB Meter - Noise Level Meter
dB Meter - Noise Level Meter
Decibel & frequency analyzer
Free
πŸ”§ Utilities
(0)
19
NoiseMeterrr - Noise Meter
NoiseMeterrr - Noise Meter
NoiseMeterrr - Noise Meter
Measure sound in real time
Free
🌟 Lifestyle
(0)
20
SoniMeter: Sound Level Meter
SoniMeter: Sound Level Meter
SoniMeter: Sound Level Meter
Calibrated SPL meter. No ads.
Free
πŸ”§ Utilities
(0)

FAQ about Noise Level Meter Free

What are the best noise level meter free apps for iPhone?
Sound Meter (Decibel) tops our noise level meter free apps ranking as of August 2026, with a 4.5-star average from 3.1K 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 August 2026.
We track 250+ noise level meter free apps on the iOS App Store as of August 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.