Best Hz Frequency Reader Apps

249+ iOS apps curated and reviewed

4.5 avg rating
18 free apps
Updated October 2026

Out of 249+ hz frequency reader apps on iOS, 18 are free and the rest sit in the paid tier. This page sorts them so you can compare both sides before you commit.

Compare top Hz Frequency Reader Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Decibel X:dB Sound Level MeterDecibel X:dB Sound Level MeterFree4.6★ (164K)NoYesNov 2026
2Frequency AnalyzerFrequency AnalyzerFree4.5★ (187)NoYesNov 2026
3FQC - Frequency CounterFQC - Frequency CounterFree—NoNoJul 2026
4VisiWaveVisiWaveFree3.7★ (12)NoNoOct 2026
5HzDetect Music Frequency TunerHzDetect Music Frequency TunerFree5.0★ (2)YesYesOct 2026
6Frequency ConverterFrequency ConverterFree5.0★ (8)NoYesOct 2026
7Frequency Analyzer: SpectraLabFrequency Analyzer: SpectraLabFree—NoYesOct 2026
8Frequency Generator: Tone HZFrequency Generator: Tone HZFree—NoYesAug 2026

Top Picks for Hz Frequency Reader

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
Frequency Analyzer#2

Frequency Analyzer by Manfred Kuegel

Sound Decibel Meter, Spectroid
Strong Contender
🔧 Utilities
4.5(187 ratings)
FreeIn-App Purchases
Frequency Analyzer screenshot 1
Frequency Analyzer screenshot 2
Frequency Analyzer screenshot 3
Frequency Analyzer screenshot 4
Frequency Analyzer screenshot 5
Frequency Analyzer screenshot 6

Transform your device into a professional audio analysis tool with real-time FFT, SPL monitoring, and advanced visualization. Record, analyze, and export high-quality audio and video data for various acoustic applications.

More Hz Frequency Reader apps to explore

FAQ about Hz Frequency Reader

What are the best hz frequency reader apps for iPhone?
Decibel X:dB Sound Level Meter tops our hz frequency reader apps ranking as of October 2026, with a 4.6-star average from 164K App Store ratings, and it's free to download.
Yes — 18 of the top hz frequency reader apps we rank are free to download, including Decibel X:dB Sound Level Meter and Frequency Analyzer.
Decibel X:dB Sound Level Meter has no ads and offers in-app purchases, according to its App Store listing as of October 2026.
We track 249+ hz frequency reader apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.