Best Sound Decibel Meter Free Apps

250+ iOS apps curated and reviewed

4.4 avg rating
20 free apps
Updated November 2026

Whether you're new to sound decibel meter free or looking for an upgrade, our curated collection of 250+ iOS apps has something for everyone. Each app is reviewed and rated by real users, helping you make an informed decision.

Compare top Sound Decibel Meter Free Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Sound Meter (Decibel)Sound Meter (Decibel)Free4.5โ˜… (3.3K)YesNoNov 2026
2Decibel Meter UltraDecibel Meter UltraFree4.6โ˜… (2.6K)NoYesNov 2026
3Decibel Metre (Sound Meter)Decibel Metre (Sound Meter)Free4.5โ˜… (578)YesNoNov 2026
4NIOSH Sound Level MeterNIOSH Sound Level MeterFree4.7โ˜… (17K)NoNoNov 2026
5Decibel Meter Sound DetectorDecibel Meter Sound DetectorFree4.7โ˜… (56K)NoYesNov 2026
6Decibel Meter MasterDecibel Meter MasterFree4.6โ˜… (3.2K)NoNoNov 2026
7Noise Decibel MeterNoise Decibel MeterFree4.6โ˜… (46)YesNoOct 2026
8Decibel X:dB Sound Level MeterDecibel X:dB Sound Level MeterFree4.6โ˜… (164K)NoYesNov 2026

Top Picks for Sound Decibel Meter Free

Sound Meter (Decibel)#1

Sound Meter (Decibel) by UniCom Technology

Measure the noise level
Editor's Choice
๐Ÿ”ง Utilities
4.5๐Ÿ˜(3.3K ratings)
FreeAds
Sound Meter (Decibel) screenshot 1
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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

  • ๐Ÿš€ Works perfectly
  • ๐Ÿ‘ Easy to use and free
  • ๐Ÿ‘ Good simple UI
  • ๐Ÿ‘ Good basic sound level meter
  • ๐Ÿ‘ Very easy and simplified display
  • ๐Ÿ‘ Super convenient, very useful
  • ๐Ÿ‘ Accurate sound measurement

Room to Improve

  • ๐Ÿ› Spelling mistake ('quiet' spelled as 'quite')
  • ๐Ÿ› Inaccurate readings compared to other apps
  • ๐Ÿ› Requires a subscription for basic recording
  • ๐Ÿ› Imprecise metering, not a reliable tool
  • ๐Ÿ› Doesn't work in split screen
  • ๐Ÿ› Poorly documented statistics
Decibel Meter Ultra#2

Decibel Meter Ultra by Ultrafine

Measure Sound and Noise Levels
Strong Contender
๐Ÿ”ง Utilities
4.6๐Ÿ˜ž(2.6K ratings)
FreeIn-App Purchases
Decibel Meter Ultra screenshot 1
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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

  • ๐ŸŽจ Aesthetically pleasing design
  • ๐Ÿ” Useful noise monitoring features
  • ๐Ÿ” Ability to collect noise evidence

Room to Improve

  • ๐Ÿ’ฐ Expensive subscription pricing
  • ๐Ÿšซ Misleading free trial claims
  • ๐Ÿšซ Difficult to cancel subscription
  • ๐Ÿ” Inconsistent noise level readings
Decibel Metre (Sound Meter)#3

Decibel Metre (Sound Meter) by UniCom Technology

Measure the environment noise
Worth Considering
๐Ÿ”ง Utilities
4.5๐Ÿ˜(578 ratings)
FreeAds
Decibel Metre (Sound Meter) screenshot 1
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Decibel Metre (Sound Meter) screenshot 6

This application functions as a smart sound level meter, utilizing your device's microphone to measure ambient noise in decibels (dBA). It provides real-time readings on a digital screen and displays historical data through a graph. The app also shows reference noise levels and tracks minimum, average, and maximum decibel values.

What We Love

  • ๐Ÿ‘ Simple and easy to use
  • ๐Ÿ‘ Helpful tool for measuring sound levels
  • ๐Ÿ‘ Straightforward and effective
  • ๐Ÿ‘ Genuinely free and useful

Room to Improve

  • ๐Ÿ› Inaccurate readings
  • ๐Ÿ› Inconsistent measurements
  • ๐Ÿ› Reset button doesn't reset average value
  • ๐Ÿ› No calibration feature

More Sound Decibel Meter Free apps to explore

FAQ about Sound Decibel Meter Free

What are the best sound decibel meter free apps for iPhone?
Sound Meter (Decibel) tops our sound decibel meter free apps ranking as of November 2026, with a 4.5-star average from 3.3K 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 November 2026.
We track 250+ sound decibel meter free apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.