Best Decibel Apps

250+ iOS apps curated and reviewed

4.4 avg rating
19 free apps
Updated November 2026

From beginner-friendly picks to power-user tools, our decibel list covers 250+ iPhone apps updated through November 2026. Compare ratings, prices, and screenshots in one place.

Compare top Decibel Apps (November 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Decibel X:dB Sound Level MeterDecibel X:dB Sound Level MeterFree4.6★ (164K)NoYesNov 2026
2NIOSH Sound Level MeterNIOSH Sound Level MeterFree4.7★ (17K)NoNoNov 2026
3Decibel Meter Sound DetectorDecibel Meter Sound DetectorFree4.7★ (56K)NoYesNov 2026
4Decibel : dB sound level meterDecibel : dB sound level meterFree4.6★ (36K)NoYesNov 2026
5Decibel - sound level meterDecibel - sound level meterFree4.6★ (4.7K)NoYesNov 2026
6Sound Meter (Decibel)Sound Meter (Decibel)Free4.5★ (3.3K)YesNoNov 2026
7Decibel HRMSDecibel HRMSFree2.5★ (4)NoNoOct 2026
8Decibel SirDecibel SirFree—NoNoJun 2026

Top Picks for Decibel

Decibel X:dB Sound Level Meter#1

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

Frequency Spectrum Analyzer
Editor's Choice
🔧 Utilities
4.6😐(164K 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

This tool transforms your device into a professional sound level meter, offering precise measurements of ambient noise. It features advanced calibration, frequency analysis, and data management for various applications, from personal curiosity to professional use.

What We Love

  • ⭐ Excellent app
  • 👍 Easy to use and understand
  • 🔍 Useful for various applications
  • 🎓 Helpful for hearing protection
  • 🔧 Accurate and reliable

Room to Improve

  • 💰 Expensive subscription model
  • 🔒 Misleading free trial
  • 📢 Intrusive ads
  • 🤖 Inaccurate readings compared to professional meters
  • 🤔 Confusing interface
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
  • 🔍 Provides detailed noise data and exposure information

Room to Improve

  • 🐛 Occasional bugs and crashes
  • 🔌 Issues with external microphone support
  • 🔋 Can drain battery when running for extended periods
  • 📱 Limited iPad optimization
Decibel Meter Sound Detector#3

Decibel Meter Sound Detector by Ashraf Thoppukadavil

Track noise around you.
Worth Considering
📊 Productivity
4.7😊(56K 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

  • 👍 No bloatware
  • 👍 Quite useful
  • 👍 Excellent and useful app
  • 👍 Easy to use
  • 👍 Simple, clear and accurate
  • 👍 Works fine
  • 👍 Precise and accurate
  • 👍 Straightforward interface
  • 👍 Useful for measuring noise levels
  • 👍 Helpful for hearing conservation
  • 👍 Accurate and convenient
  • 👍 Surprisingly accurate
  • 👍 Clean interface
  • 👍 Stunning masterpiece
  • 👍 Needs more than 5 stars

Room to Improve

  • 🐛 Ads block settings
  • 🐛 Inaccurate readings
  • 🐛 Not sensitive at all
  • 🐛 Dangerously inaccurate
  • 🐛 Unable to record continuously

More Decibel apps to explore

FAQ about Decibel

What are the best decibel apps for iPhone?
Decibel X:dB Sound Level Meter tops our decibel apps ranking as of November 2026, with a 4.6-star average from 164K App Store ratings, and it's free to download.
Yes — 19 of the top decibel apps we rank are free to download, including Decibel X:dB Sound Level Meter and NIOSH Sound Level Meter.
Decibel X:dB Sound Level Meter has no ads and offers in-app purchases, according to its App Store listing as of November 2026.
We track 250+ decibel apps on the iOS App Store as of November 2026, ranked by rating, recency, and analysis of real user reviews.

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