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Best Environmental Sound Detector Apps

0+ iOS apps curated and reviewed

4.5 avg rating
19 free apps
Updated July 2026

Every iPhone needs a few good environmental sound detector apps. We benchmark 0+ 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 Environmental Sound Detector Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Decibel Meter UltraDecibel Meter UltraFree4.6β˜… (2.5K)NoYesAug 2026
2Decibel X PRO: dBA Noise MeterDecibel X PRO: dBA Noise Meter$69.994.7β˜… (6.9K)NoNoAug 2026
3Decibel Meter Sound DetectorDecibel Meter Sound DetectorFree4.7β˜… (54K)NoYesAug 2026
4NIOSH Sound Level MeterNIOSH Sound Level MeterFree4.7β˜… (17K)NoNoAug 2026
5Decibel Meter: Sound dBDecibel Meter: Sound dBFree4.3β˜… (303)YesYesAug 2026
6Decibel Meter - Sound MeterDecibel Meter - Sound MeterFree4.3β˜… (222)YesYesAug 2026
7Sonic Pitch Sound GeneratorSonic Pitch Sound GeneratorFree4.5β˜… (1.8K)YesYesAug 2026
8Decibel X:dB Sound Level MeterDecibel X:dB Sound Level MeterFree4.6β˜… (161K)NoYesAug 2026

Top Picks for Environmental Sound Detector

Decibel Meter Ultra#1

Decibel Meter Ultra by Ultrafine

Measure Sound and Noise Levels
Editor's Choice
πŸ”§ Utilities
4.6😞(2.5K ratings)
FreeIn-App Purchases
Decibel Meter Ultra screenshot 1
Decibel Meter Ultra screenshot 2
Decibel Meter Ultra screenshot 3
Decibel Meter Ultra screenshot 4
Decibel Meter Ultra screenshot 5
Decibel Meter Ultra screenshot 6

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.

What We Love

  • 🎨 Aesthetically pleasing design
  • πŸ” Useful noise monitoring features
  • πŸ” Ability to collect noise evidence

Room to Improve

  • πŸ’° Expensive subscription pricing
  • 🚫 Misleading free trial claims
  • 🚫 Difficult to cancel subscription
Decibel X PRO: dBA Noise Meter#2

Decibel X PRO: dBA Noise Meter by SkyPaw Co., Limited

Frequency Spectrum Analyzer
Strong Contender
πŸ”§ Utilities
4.7😊(6.9K ratings)
$69.99
Decibel X PRO: dBA Noise Meter screenshot 1
Decibel X PRO: dBA Noise Meter screenshot 2
Decibel X PRO: dBA Noise Meter screenshot 3
Decibel X PRO: dBA Noise Meter screenshot 4
Decibel X PRO: dBA Noise Meter screenshot 5
Decibel X PRO: dBA Noise Meter screenshot 6

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.

What We Love

  • πŸ‘ Works well
  • πŸš€ Keeps getting better with updates
  • πŸ’‘ Useful for monitoring noise levels
  • πŸ’‘ Helps protect hearing

Room to Improve

  • πŸ› Data transfer issues between devices
  • πŸ› Crashes and stability issues
  • πŸ› Camera crashes
Decibel Meter Sound Detector#3

Decibel Meter Sound Detector by Ashraf Thoppukadavil

Track noise around you.
Worth Considering
πŸ“Š 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

  • πŸ‘ No bloatware
  • πŸ‘ Quite useful
  • πŸ‘ Excellent and useful app
  • πŸ‘ Easy to use

Room to Improve

  • πŸ› Ads block settings
  • πŸ› Inaccurate readings
  • πŸ› Not sensitive at all

More Environmental Sound Detector apps to explore

4
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
πŸ”§ Utilities
(17K)
free
5
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
πŸ”§ Utilities
(303)
free with in-app purchases
6
Decibel Meter - Sound Meter
Decibel Meter - Sound Meter
Decibel Meter - Sound Meter
Sound measurement tool.
Free

Transform your smartphone into a precise sound measuring device. This app uses your phone's microphone to display real-time decibel levels with clear descriptions. Analyze sound over time, calibrate for accuracy, and share your findings easily.

Real-time decibel measurementMin, average, and max sound levelsApple Watch integration
πŸ”§ Utilities
(222)
free with in-app purchases
7
Sonic Pitch Sound Generator
Sonic Pitch Sound Generator
Sonic Pitch Sound Generator
Clear Sound Wave Generator
Free

Generate precise sound waves with adjustable frequencies and various waveform types. Use it for audio testing, insect repulsion, pet training, or as a prank tool. Features include a decibel meter and stereo sound tests.

Adjustable sine, square, triangle, and sawtooth waveformsPrecise frequency control from 0Hz to 25kHzWave visualization
πŸ”§ Utilities
(1.8K)
subscription
8
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
(161K)
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
πŸ”§ Utilities
(1.3K)
free with in-app purchases
10
Decibel dB – Sound Level Meter
Decibel dB – Sound Level Meter
Decibel dB – Sound Level Meter
NIOSH SLM & Noise Analyzer Pro
Free

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.

Measure noise in decibels (dB)Track MIN, AVG, MAX sound levelsRecord and export measurements
πŸ”§ Utilities
(676)
subscription
11
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
πŸ”§ Utilities
(4.7K)
subscription
12
Decibel Meter Β· Sound Analyzer
Decibel Meter Β· Sound Analyzer
Decibel Meter Β· Sound Analyzer
Noise Level & Frequency, SPL
Free

Measure ambient noise levels and sound exposure duration in real-time. This app displays acoustic intensity in decibels with detailed visual reports and supports photo/video overlays with noise data. Protect your health from noise pollution.

Real-time decibel meterMIN, AVG, MAX sound level displayNoise dosimeter (NIOSH/OSHA compliant)
πŸ”§ Utilities
(1.3K)
subscription
13
Decibel Meter & Noise Detector
Decibel Meter & Noise Detector
Decibel Meter & Noise Detector
High pitch sound detector
Free

This app provides real-time decibel readings, sound level monitoring, and voice-activated noise recording. It allows users to document noise levels with video evidence, including decibel watermarks and timestamps, all processed on-device for privacy.

Real-time dB meter with max, min, averageVoice-activated noise recordingVideo recording with decibel watermark
πŸ”§ Utilities
(2)
free with in-app purchases
14
Shush - Sound & Noise meter
Shush - Sound & Noise meter
Shush - Sound & Noise meter
Loud voice decibel detector DB
Free

This app detects ambient noise levels and plays a loud "SHUSH" sound when it exceeds a set threshold. It's ideal for maintaining quiet environments in places like classrooms or libraries, and also allows users to record or select custom sound effects.

Noise level detectionAutomatic "SHUSH" sound alertCustomizable sound effects
πŸ”§ Utilities
(323)
free with in-app purchases
15
Sound Meter (Noise Detector)
Sound Meter (Noise Detector)
Sound Meter (Noise Detector)
Protect Your Health From Noise
Free

This free application helps protect your health by detecting noise levels around you. It provides warning alerts for potentially harmful noise and offers features for hearing loss testing and measuring noise in various environments. It also includes music to aid relaxation and focus.

Noise level detectionHealth warning alertsHearing loss testing
πŸ’ͺ Health & Fitness
(8)
ad-supported
16
Animal Sound Identifier: Guide
Animal Sound Identifier: Guide
Animal Sound Identifier: Guide
Bird ID by Sound & Photo
Free

Identify animals using your device's camera or by recording sounds. Get instant species identification, detailed facts, habitat information, and AI-powered answers about animal behavior and conservation. All features require a subscription.

Real-time camera scanning for animal identificationSound recognition for birds, insects, and frogsImport photos from gallery for analysis
πŸ“š Education
(60)
subscription
17
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
18
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
πŸ”§ Utilities
(468)
free with in-app purchases
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
πŸ”§ Utilities
(7)
ad-supported
20
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
πŸ”§ Utilities
(250)
free with in-app purchases

FAQ about Environmental Sound Detector

What are the best environmental sound detector apps for iPhone?
Decibel Meter Ultra tops our environmental sound detector apps ranking as of July 2026, with a 4.6-star average from 2.5K App Store ratings, and it's free to download.
Yes β€” 19 of the top environmental sound detector apps we rank are free to download, including Decibel Meter Ultra and Decibel Meter Sound Detector.
Decibel Meter Ultra has no ads and offers in-app purchases, according to its App Store listing as of July 2026.
Decibel Meter Ultra is a comprehensive tool for measuring, recording, and tracking sound levels in your environment. It functions as a sound level meter, dosimeter, and real-time analyzer, providing detailed acoustic information.
Key features include precision metering with selectable frequency and time weightings, the ability to eliminate nuisance noise by logging and reporting problem sounds, hearing protection features with a built-in dosimeter, and advanced fractional octave band analysis for home audio calibration.