Best Sound Frequency Analyzer Apps

249+ iOS apps curated and reviewed

4.3 avg rating
18 free apps
Updated August 2026

With an average user rating of 4.3★, the sound frequency analyzer category is one of the App Store's strongest. Browse all 249+ apps we track, sorted so the most loved ones surface first.

Compare top Sound Frequency Analyzer Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Decibel X:dB Sound Level MeterDecibel X:dB Sound Level MeterFree4.6★ (161K)NoYesAug 2026
2Frequency AnalyzerFrequency AnalyzerFree4.5★ (155)NoYesAug 2026
3Audio / Spectrum AnalyzerAudio / Spectrum AnalyzerFree was $10.994.6★ (1K)YesYesAug 2026
4Audio Spectrum Analyzer dB RTAAudio Spectrum Analyzer dB RTAFree4.5★ (3K)NoYesAug 2026
5NAMILIUM – Spectrum AnalyzerNAMILIUM – Spectrum AnalyzerFreeNoNoAug 2026
6Frequency Analyzer SpectrumFrequency Analyzer SpectrumFreeNoNoAug 2026
7Audio Spectrum Analyzer ProAudio Spectrum Analyzer ProFree4.4★ (238)NoYesAug 2026
8Decibel : dB sound level meterDecibel : dB sound level meterFree4.6★ (36K)NoYesAug 2026

Top Picks for Sound Frequency Analyzer

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😐(161K 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 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.

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
Frequency Analyzer#2

Frequency Analyzer by Manfred Kuegel

Audio Spectrum, Spectroid, dB
Strong Contender
🔧 Utilities
4.5(155 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 advanced FFT analysis, SPL monitoring, and detailed visualizations. Record, analyze, and export audio data with precision calibration and multiple weighting filters.

Audio / Spectrum Analyzer#3

Audio / Spectrum Analyzer by Loop-Sessions.LLC.

RTA (FFT / Spectrogram)
Worth Considering
🎵 Music
4.6😐(1K ratings)
FreeAdsIn-App Purchases
Audio / Spectrum Analyzer screenshot 1
Audio / Spectrum Analyzer screenshot 2
Audio / Spectrum Analyzer screenshot 3
Audio / Spectrum Analyzer screenshot 4
Audio / Spectrum Analyzer screenshot 5
Audio / Spectrum Analyzer screenshot 6

This application analyzes audio input from your microphone, displaying both the waveform and amplitude spectrum in real-time. It offers extensive customization for display, calculation, and signal generation.

What We Love

  • 👍 Customizable features
  • ⚙️ Accurate measurements
  • 🚀 Helpful for troubleshooting
  • 💡 Useful for ghost hunting

Room to Improve

  • 🐛 Crashes and freezes
  • 🔋 High battery and CPU usage
  • 🚫 Inappropriate ads/content

More Sound Frequency Analyzer apps to explore

4
Audio Spectrum Analyzer dB RTA
Audio Spectrum Analyzer dB RTA
Audio Spectrum Analyzer dB RTA
Sound frequency, decibel meter
Free

Analyze sound frequencies and decibel levels with this advanced tool. Ideal for tuning audio systems, it offers real-time spectrum analysis and sound metering for various applications.

Octave Band Real-Time AnalyzerFFT Plot - Fast Fourier TransformIntegrated Sound Level Meter (dB-A)
🎵 Music
(3K)
free with in-app purchases
5
NAMILIUM – Spectrum Analyzer
NAMILIUM – Spectrum Analyzer
NAMILIUM – Spectrum Analyzer
A precise, beautiful analyzer
Free
🎵 Music
(0)
6
Frequency Analyzer Spectrum
Frequency Analyzer Spectrum
Frequency Analyzer Spectrum
Audio Spectrum Analyzer Hz
Free
🌟 Lifestyle
(0)
7
Audio Spectrum Analyzer Pro
Audio Spectrum Analyzer Pro
Audio Spectrum Analyzer Pro
Sound Frequency Analysis
Free

Analyze sound frequencies in real-time with this powerful tool. It offers detailed octave band analysis, FFT plots, and various measurement scales. Supports multiple microphones and noise analysis features for accurate audio insights.

Octave Band Real Time AnalyzerFFT Plot (Fast Fourier Transform)Sound level meter (dB meter)
🎵 Music
(238)
free with in-app purchases
8
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
🔧 Utilities
(36K)
freemium
9
Octave Band Real Time Frequency Analyzer and Sound Level Meter
Octave Band Real Time Frequency Analyzer and Sound Level Meter
Octave Band Real Time Frequency Analyzer and Sound Level Meter
by Marina Polyanskaya
$1.99

This app provides real-time audio analysis for room and speaker tuning. It offers precision measurement and visualization of sound frequencies, suitable for both enthusiasts and professionals. Advanced features are included for accurate spectrum analysis.

Octave Band Real-Time AnalyzerIntegrated Sound Level MeterPrecision audio measurement
📊 Productivity
(5)
paid
10
Frequency: Sound Generator
Frequency: Sound Generator
Frequency: Sound Generator
by Lucija Jaksic
Free

Generate various sound waves, including sine, square, sawtooth, and triangle, with adjustable frequencies from 1Hz to 22000Hz. Visually observe animated sound waves and control volume. Useful for testing hearing, speakers, instruments, and even cleaning water from speakers.

Generate sine, square, sawtooth, triangle wavesAdjustable frequency (1Hz-22000Hz)Animated sound wave visualization
🔧 Utilities
(340)
free with in-app purchases
11
Frequency Generator: Tone HZ
Frequency Generator: Tone HZ
Frequency Generator: Tone HZ
Binaural beats & pure waveform
Free
🌟 Lifestyle
(0)
12
AudioAnalyzerApp
AudioAnalyzerApp
AudioAnalyzerApp
Let's enjoy sound
Free
🎵 Music
(0)
13
Decibel Meter・Sound Level dB
Decibel Meter・Sound Level dB
Decibel Meter・Sound Level dB
Frequency Reader・Noise Measure
Free
📊 Productivity
(0)
14
Easy Audio Spectrogram
Easy Audio Spectrogram
Easy Audio Spectrogram
Visualize sound effortlessly
Free
🔧 Utilities
(0)
15
Frequency Analyzer: dB Meter
Frequency Analyzer: dB Meter
Frequency Analyzer: dB Meter
Sound Spectrogram, SPL & FFT
Free
🔧 Utilities
(0)
16
Sounn VR Audio Analyzer
Sounn VR Audio Analyzer
Sounn VR Audio Analyzer
RTA, FFT & Spectrogram
Free
🔧 Utilities
(0)
17
FFT Spectrum Audio Analyzer
FFT Spectrum Audio Analyzer
FFT Spectrum Audio Analyzer
Real-Time FFT and dB Meter
$6.99
🎵 Music
(0)
18
SoundEngg: RTA & Audio Utility
SoundEngg: RTA & Audio Utility
SoundEngg: RTA & Audio Utility
Live Sound Calculators & RTA
Free
🔧 Utilities
(0)
19
Frequency Analyzer
Frequency Analyzer
Frequency Analyzer
by RAMAZAN USEN
Free
🔧 Utilities
(0)
20
TheoMeter
TheoMeter
TheoMeter
by Frankie Wellman
Free
🔧 Utilities
(0)

FAQ about Sound Frequency Analyzer

What are the best sound frequency analyzer apps for iPhone?
Decibel X:dB Sound Level Meter tops our sound frequency analyzer apps ranking as of August 2026, with a 4.6-star average from 161K App Store ratings, and it's free to download.
Yes — 18 of the top sound frequency analyzer 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 August 2026.
We track 249+ sound frequency analyzer apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
Decibel X turns your iOS device into a professional sound level meter. It precisely measures the sound pressure level (SPL) around you and offers advanced features like frequency spectrum analysis and historical data management.
Key features include trusted accuracy with pre-calibrated measurements, Apple Watch support, Health App integration, various frequency weighting filters (A, C, Z, ITU-R 468), powerful history data management with export options, dosimeter functions, and real-time FFT and BAR graphs for frequency analysis.

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