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Best Free Sound Measure Apps

231+ iOS apps curated and reviewed

4.5 avg rating
19 free apps
Updated May 2026

Finding the right free sound measure app can be overwhelming with so many options. We've analyzed 231+ apps to bring you the best choices for 2026, from free options to premium solutions with advanced features.

Top Picks for Free Sound Measure

Decibel X:dB Sound Level Meter#1

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

Frequency Spectrum Analyzer
Editor's Choice
🔧 Utilities
4.7😐(156K 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

Transform your iOS device into a professional sound level meter with pre-calibrated accuracy and various frequency spectrum analysis tools. Measure sound pressure levels, export data to Health app, and enjoy features like FFT graphs, dosimeter readings, and InstaDecibel for social sharing. Experience the convenience of tracking noise levels with precision and ease.

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
NIOSH Sound Level Meter#2

NIOSH Sound Level Meter by EA LAB d.o.o.

Strong Contender
🔧 Utilities
4.7😊(16K 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 award-winning app, developed by acoustics engineers and hearing loss experts, offers a simple and free solution for measuring sound levels accurately. It provides essential metrics, calibration options, educational resources, and expert support, making it a comprehensive tool for monitoring noise exposure and protecting hearing. Click the link to access the app: [NIOSH Sound Level Meter](https:/www.cdc.gov/niosh/topics/noise/app.html).

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 dB (Sound Meter)#3

Decibel Meter dB (Sound Meter) by Zipo Apps Ltd.

Noise Level Analyzer + Measure
Worth Considering
🔧 Utilities
4.4😞(1.2K ratings)
FreeAdsIn-App Purchases
Decibel Meter dB (Sound Meter) screenshot 1
Decibel Meter dB (Sound Meter) screenshot 2
Decibel Meter dB (Sound Meter) screenshot 3
Decibel Meter dB (Sound Meter) screenshot 4
Decibel Meter dB (Sound Meter) screenshot 5

An advanced Sound Level Analyser application that measures sound volume in decibels, providing real-time readings with a volume value timeline and calibration settings for device microphones. It includes an Apple Watch feature for measuring sound volume independently of an iPhone. Experience precise sound measurements with this app - download now!

What We Love

  • 👍 Easy to use
  • 🤩 Accurate measurements
  • 💯 Useful for various applications

Room to Improve

  • 🤑 Expensive subscription
  • 🔒 Difficult to refund
  • 🐛 Inaccurate readings

More Free Sound Measure apps to explore

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

Measure environmental noise levels with this sound meter app, displaying decibel values in various forms. Features include gauge indication, noise reference display, recording storage, and more. Try it for an easy way to monitor sound levels!

🔧 Utilities
(2.6K)
5
Decibel Metre (Sound Meter)
Decibel Metre (Sound Meter)
Decibel Metre (Sound Meter)
Measure the environment noise
Free

Measure sound levels with precision using our smart sound level meter app for IOS. This app utilizes your device's microphone to provide accurate decibel readings and visual representations on a graph. Check decibel levels, track fluctuations, and stay informed about your surroundings.

🔧 Utilities
(577)
6
Decibelímetro Ultra
Decibelímetro Ultra
Decibelímetro Ultra
Noise Level Frequency Analyzer
Free

Measure the sound levels around you accurately with our Decibel Meter Ultra app. Stay informed and protect your hearing by monitoring noise levels in real-time. Download now for a quieter and safer environment.

🔧 Utilities
(272)
7
Decibel Meter Sound Detector
Decibel Meter Sound Detector
Decibel Meter Sound Detector
Track noise around you.
Free

Track environmental noise levels with an easy-to-use decibel meter app that provides detailed analysis through dB and AF readings. Share readings, utilize polling, and explore various features for sound monitoring. Contact info@ashiers.com for more information.

📊 Productivity
(48K)
8
Sound Meter HQ
Sound Meter HQ
Sound Meter HQ
Measure noise and sound level
Free
🔧 Utilities
(327)
9
Decibel Meter - Sound Meter
Decibel Meter - Sound Meter
Decibel Meter - Sound Meter
Sound measurement tool.
Free

Turn your smartphone into a sound measuring device with this app, which uses a built-in microphone to display current decibel levels and provides comprehensive data analysis, including average, min, and max values. Start measuring sound levels now and get instant readings, shareable data, and historical tracking with customizable settings.

🔧 Utilities
(222)
10
Decibel Meter Master
Decibel Meter Master
Decibel Meter Master
Tool for measuring sound level
Free

Measure noise levels with precision using a convenient sound level meter on your iPhone with this app. Download now to accurately gauge sound levels in your surroundings.

🔧 Utilities
(2.9K)
11
SoundLevel: Decibel Reading
SoundLevel: Decibel Reading
SoundLevel: Decibel Reading
by Smudge Apps Ltd
Free

This application provides a simple way to measure the current sound level of your environment, with readings calibrated to match the human ear. It allows you to view and graph your results over time, and even export them as a CSV file with a one-time in-app purchase, making it a must-have tool for quick and easy sound measurements.

🔧 Utilities
(4)
12
Decibel X PRO: dBA Noise Meter
Decibel X PRO: dBA Noise Meter
Decibel X PRO: dBA Noise Meter
Frequency Spectrum Analyzer
$69.99

Transform your iOS device into a professional sound level meter with our leading noise meter app. Measure sound pressure levels accurately and protect your hearing, whether you're an audio expert or simply curious about your surroundings. See noise levels on your Apple Watch, export data to the Health app, and enjoy features like frequency analysis and dosimeter readings.

🔧 Utilities
(6.9K)
13
Decibel - sound level meter
Decibel - sound level meter
Decibel - sound level meter
Spectrum frequency analyzer
Free

Measure sound pressure and spectrum variations with the Decibel app. Compare recordings to a reference chart, save your history, and enjoy a user-friendly interface. Subscribe for access to premium features and unlimited recordings.

🔧 Utilities
(4.5K)
14
Frequency: Sound Generator
Frequency: Sound Generator
Frequency: Sound Generator
by Lucija Jaksic
Free

Generate a sound wave at any frequency between 1Hz and 22,000Hz with our easy-to-use sound generator. Test your speakers, tune your instruments, or simply explore the world of sound frequencies. Download now to take control of your audio experience.

🔧 Utilities
(340)
15
Car Decibel Sound Level Meter
Car Decibel Sound Level Meter
Car Decibel Sound Level Meter
Measure Car & Bike dB Noise
Free

Measure and monitor the sound levels of your car with precision using this innovative application. Ensure your vehicle's noise levels are optimal for a smooth driving experience.

🔧 Utilities
(197)
16
Sound Meter - Decibel Pro
Sound Meter - Decibel Pro
Sound Meter - Decibel Pro
dB Meter: Decibel Sound Level
Free

This sound level meter app measures environmental noise in decibel values, helping users evaluate and monitor noise levels around them, and protecting them from noise pollution. Download this free app to turn your phone into a sound meter tool and take control of your noise environment.

🔧 Utilities
(28)
17
Decibel Meter: dB Sound Meters
Decibel Meter: dB Sound Meters
Decibel Meter: dB Sound Meters
dB Sound Test and Noise Meter
Free

Turn your phone into a professional sound level meter to measure decibel (dB) levels and hertz (Hz) sound in real-time. Measure sound intensity, set custom alerts, and log data for later review with a clean and intuitive interface.

🔧 Utilities
(37)
18
Sound Meter (dB) - dBShift
Sound Meter (dB) - dBShift
Sound Meter (dB) - dBShift
Quick Sound Analyzer
Free

Measure, record, and analyze sound levels in real-time with a precise mobile app designed for professionals and individuals alike, featuring real-time measurement, sound recording, and graphical analysis. Download the app to start tracking sound levels and receive customizable alerts and historical data insights.

🎵 Music
(18)
19
Decibel Shield - dB Meter
Decibel Shield - dB Meter
Decibel Shield - dB Meter
Measure Noise & Sound Levels
Free
🔧 Utilities
(468)
20
Decibel Meterーmeasure decibels
Decibel Meterーmeasure decibels
Decibel Meterーmeasure decibels
Sound Pressure Levelーdb-meter
Free

This sound level meter app measures sound volume in decibels using your device's built-in microphone and displays the samples on a graph. Download it now to easily measure sound levels and track the data.

🔧 Utilities
(19)

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