Best I Sound Level Meter Apps

225+ iOS apps curated and reviewed

4.5 avg rating
17 free apps
Updated May 2026

Every iPhone needs a few good i sound level meter apps. We benchmark 225+ 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 I Sound Level Meter Apps (May 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1i Sound Level Meteri Sound Level MeterFree4.5★ (33)YesNoJul 2026
2Decibel dB – Sound Level MeterDecibel dB – Sound Level MeterFree4.7★ (651)NoYesAug 2026
3NIOSH Sound Level MeterNIOSH Sound Level MeterFree4.7★ (17K)NoNoAug 2026
4Decibel X PRO: dBA Noise MeterDecibel X PRO: dBA Noise Meter$69.994.7★ (6.9K)NoNoAug 2026
5Sound Meter (Decibel)Sound Meter (Decibel)Free4.5★ (3.1K)YesNoAug 2026
6Decibel Meter UltraDecibel Meter UltraFree4.6★ (2.4K)NoYesAug 2026
7Decibel Meter MasterDecibel Meter MasterFree4.6★ (2.9K)NoNoAug 2026
8SoundLevel: Decibel ReadingSoundLevel: Decibel ReadingFree3.0★ (4)NoYesMay 2026

Top Picks for I Sound Level Meter

i Sound Level Meter#1

i Sound Level Meter by Seong Eon Kim

( Voice Meter )
Editor's Choice
🔧 Utilities
4.5(33 ratings)
FreeAds
i Sound Level Meter screenshot 1
i Sound Level Meter screenshot 2

Measure the noise levels around you with this sound meter. Track maximum and minimum decibel values during your measurements. For the most accurate readings, consider using a high-performance noise meter.

Decibel dB – Sound Level Meter#2

Decibel dB – Sound Level Meter by ITincubator UAB

NIOSH SLM & Noise Analyzer Pro
Strong Contender
🔧 Utilities
4.7😊(651 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

Measure ambient noise and sound levels in real-time with this tool. It helps control noise pollution and protect user health by displaying decibel values numerically and graphically. Track exposure over time with NIOSH and OSHA compliant measurements.

What We Love

  • 👍 Accurate and reliable measurements
  • 🚀 Easy to use interface
  • 💡 Innovative features like photo/video noise overlay
  • 👍 Compliant with industry standards

Room to Improve

  • 🐛 Inconsistent accuracy compared to other apps
  • 🐛 Doesn't detect loud noises accurately
NIOSH Sound Level Meter#3

NIOSH Sound Level Meter by EA LAB

Worth Considering
🔧 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

More I Sound Level Meter apps to explore

4
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
5
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
6
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
7
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
8
SoundLevel: Decibel Reading
SoundLevel: Decibel Reading
SoundLevel: Decibel Reading
by Smudge Apps Ltd
Free

Measure ambient noise levels with calibrated dBA readings that mimic human hearing. Compare current sound levels to familiar benchmarks and review historical data with intuitive graphs. Export your findings for further analysis with optional pro features.

Quick sound level measurementsCalibrated dBA readingsComparison values
🔧 Utilities
(4)
free with in-app purchases
9
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
10
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
(865)
free with in-app purchases
11
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
12
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
(160K)
free with in-app purchases
13
Decibel Meter: Sound dB
Decibel Meter: Sound dB
Decibel Meter: Sound dB
Noise Level Tracker & SPL App
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
(294)
free with in-app purchases
14
Decibel : dB Noise Level Meter
Decibel : dB Noise Level Meter
Decibel : dB Noise Level Meter
Audio Sound Frequency Analyzer
Free

Measure, analyze, and protect your hearing with this comprehensive sound level meter. It offers real-time decibel readings, noise exposure monitoring, and tools for audio exploration like frequency generation and speaker cleaning.

Real-time sound level measurement (dB)Noise exposure monitoring (Dosimeter)Interactive recording and visualization
🔧 Utilities
(250)
free with in-app purchases
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
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
17
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
📊 Productivity
(54K)
free with in-app purchases
18
Bubble Level 2022
Bubble Level 2022
Bubble Level 2022
Level in the palm of your hand
Free

Transform your smartphone into a versatile bubble level tool. It offers multiple viewing options, displays angles and slopes in percentages or roof pitch, and includes sound effects and orientation locking for precise measurements.

Digital bubble levelAngle and slope measurementPercentage and roof pitch display
🔧 Utilities
(6.3K)
ad-supported
19
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
20
SPL Meter
SPL Meter
SPL Meter
Sound Level Meter
$0.99

This application functions as a professional-grade sound level meter, measuring decibels (dB) with advanced DSP algorithms. It offers adjustable filters, decay rates, and ranges, and can be calibrated for accuracy. It supports both internal and external microphones for versatile sound measurement.

A and C weighting filtersANSI Fast or Slow decay40dB to 120dB ranges
🎵 Music
(27)
paid

FAQ about I Sound Level Meter

What are the best i sound level meter apps for iPhone?
i Sound Level Meter tops our i sound level meter apps ranking as of May 2026, with a 4.5-star average from 33 App Store ratings, and it's free to download.
Yes — 17 of the top i sound level meter apps we rank are free to download, including i Sound Level Meter and Decibel dB – Sound Level Meter.
i Sound Level Meter shows ads and has no in-app purchases, according to its App Store listing as of May 2026.
We track 225+ i sound level meter apps on the iOS App Store as of May 2026, ranked by rating, recency, and analysis of real user reviews.
This application functions as a noise meter, allowing you to measure the sound levels in your surroundings. It helps you understand how much noise is present around you by displaying decibel readings.
Yes, you can track noise levels over time. The app allows you to check the maximum and minimum decibel values recorded from the moment you start your noise measurements.