Best Hertz Frequency Measure Apps

249+ iOS apps curated and reviewed

4.4 avg rating
19 free apps
Updated July 2026

Every iPhone needs a few good hertz frequency measure apps. We benchmark 249+ of them on App Store rating, freshness, and pricing, then surface the standouts so you don't have to scroll the App Store yourself.

Compare top Hertz Frequency Measure Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Frequency Counter+ Hz FFTFrequency Counter+ Hz FFTFree4.0★ (4)YesNoAug 2026
2Frequency: Sound GeneratorFrequency: Sound GeneratorFree4.7★ (340)YesNoAug 2026
3FQC - Frequency CounterFQC - Frequency CounterFreeNoNoJul 2026
4Decibel X:dB Sound Level MeterDecibel X:dB Sound Level MeterFree4.6★ (161K)NoYesAug 2026
5Frequency AnalyzerFrequency AnalyzerFree4.5★ (155)NoYesAug 2026
6VisiWaveVisiWaveFree4.4★ (8)NoNoJul 2026
7Subwoofer Frequency TestSubwoofer Frequency TestFree4.1★ (9)NoNoAug 2026
8Frequency Sound Generator AppFrequency Sound Generator AppFree4.5★ (4.8K)YesYesAug 2026

Top Picks for Hertz Frequency Measure

Frequency Counter+ Hz FFT#1

Frequency Counter+ Hz FFT by Kyu-Hee Jang

Tuner · RPM · 50/60Hz Meter
Editor's Choice
🔧 Utilities
4.0(4 ratings)
FreeAds
Frequency Counter+ Hz FFT screenshot 1
Frequency Counter+ Hz FFT screenshot 2
Frequency Counter+ Hz FFT screenshot 3
Frequency Counter+ Hz FFT screenshot 4

This app transforms your iPhone into a powerful audio analyzer. It offers four distinct modes to measure sound frequencies, tune instruments, analyze motor speeds, and check mains stability. Advanced features include measurement history, comparison tools, and CSV export.

Frequency: Sound Generator#2

Frequency: Sound Generator by Lucija Jaksic

Strong Contender
🔧 Utilities
4.7😊(340 ratings)
FreeAds
Frequency: Sound Generator screenshot 1
Frequency: Sound Generator screenshot 2
Frequency: Sound Generator screenshot 3

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.

What We Love

  • 👍 Simple and easy to use interface
  • 🎵 Accurate frequency generation
  • 💰 Free application
  • 🧘 Helpful for meditation and stress relief

Room to Improve

  • 📢 Intrusive and inappropriate advertisements
  • 🔊 Potential audio damage to speakers/hearing
  • 🔒 Privacy concerns and data collection issues

More Hertz Frequency Measure apps to explore

4
Decibel X:dB Sound Level Meter
Decibel X:dB Sound Level Meter
Decibel X:dB Sound Level Meter
Frequency Spectrum Analyzer
Free

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.

Precise sound pressure level measurementFrequency spectrum analysis (FFT, BAR graphs)Historical data recording and export
🔧 Utilities
(161K)
free with in-app purchases
5
Frequency Analyzer
Frequency Analyzer
Frequency Analyzer
Audio Spectrum, Spectroid, dB
Free

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.

Real-time FFT analysisCalibrated SPL measurements32-bit float audio recording
🔧 Utilities
(155)
free with in-app purchases
6
VisiWave
VisiWave
VisiWave
See the frequencies around you
Free

Visualize sound waves in real-time by detecting and displaying their frequencies in Hertz. Experience an augmented reality view of the audio environment around you.

Detects sound frequenciesVisualizes sound waves in real-timeMeasures in Hertz
🔧 Utilities
(8)
free
7
Subwoofer Frequency Test
Subwoofer Frequency Test
Subwoofer Frequency Test
by Leafgreen
Free

Test the low-frequency capabilities of your speakers with precise sound frequencies. Pinpoint the lowest bass your audio system can produce, from 15Hz to 100Hz, to ensure you're not missing out on deep sounds in your music.

Precise low range sound frequenciesFrequencies from 15Hz to 100HzTest sounds in 5Hz increments
🎵 Music
(9)
free
8
Frequency Sound Generator App
Frequency Sound Generator App
Frequency Sound Generator App
High Pitch Sound Generator
Free

Generate sound frequencies from 1Hz to 25,000Hz with a simple interface. Features include wave visualization, adjustable sensitivity, and multiple waveform options. Use it for hearing tests, pet training, or as a prank tool.

Frequency range 1Hz to 25,000HzWave visualizationAdjustable sensitivity
🔧 Utilities
(4.8K)
subscription
9
Frequency Calculator
Frequency Calculator
Frequency Calculator
Part of CalCon Calculator
Free
🔧 Utilities
(0)
10
Show Me Where It Hertz
Show Me Where It Hertz
Show Me Where It Hertz
by Isaac Lyons
Free
🔧 Utilities
(0)
11
H&I Products
H&I Products
H&I Products
RF Calculator & Visualizer
Free
🔧 Utilities
(0)
12
HighFinesse/Ångstrom Wavemeter
HighFinesse/Ångstrom Wavemeter
HighFinesse/Ångstrom Wavemeter
Highest accuracy in your hand
Free

Monitor pulse and CW-lasers with high accuracy. View wavelength and intensity data for each device channel. Offers an acoustic mode for monitoring when the screen is not visible.

Pulse and CW-laser monitoringWavelength and intensity displayTCP/IP local network connection
📊 Productivity
(0)
free
13
FNam FFT Spectrogram Analyzer
FNam FFT Spectrogram Analyzer
FNam FFT Spectrogram Analyzer
by YEON SEOB KIM
Free
🔧 Utilities
(0)
14
Decibel Meter: Noise Recorder
Decibel Meter: Noise Recorder
Decibel Meter: Noise Recorder
dB Noise Level & Hearing Guard
Free
🔧 Utilities
(0)
15
hexaGen
hexaGen
hexaGen
Tone Generator
Free
🌟 Lifestyle
(0)
16
FNam Frequency,Noise Generator
FNam Frequency,Noise Generator
FNam Frequency,Noise Generator
Noise Gen, WAV & CSV player
Free
🔧 Utilities
(0)
17
EMF Calculator
EMF Calculator
EMF Calculator
by Wavecontrol SL
Free
🔧 Utilities
(0)
18
Gotti Tech
Gotti Tech
Gotti Tech
The famous Tone in an App
$1.99
🔧 Utilities
(0)
19
SoundScope: Audio Toolkit
SoundScope: Audio Toolkit
SoundScope: Audio Toolkit
Professional Audio Analysis
Free
🔧 Utilities
(0)
20
DecibelPeak
DecibelPeak
DecibelPeak
Decibel Meter
Free
🔧 Utilities
(0)

FAQ about Hertz Frequency Measure

What are the best hertz frequency measure apps for iPhone?
Frequency Counter+ Hz FFT tops our hertz frequency measure apps ranking as of July 2026, with a 4.0-star average from 4 App Store ratings, and it's free to download.
Yes — 19 of the top hertz frequency measure apps we rank are free to download, including Frequency Counter+ Hz FFT and Frequency: Sound Generator.
Frequency Counter+ Hz FFT shows ads and has no in-app purchases, according to its App Store listing as of July 2026.
We track 249+ hertz frequency measure apps on the iOS App Store as of July 2026, ranked by rating, recency, and analysis of real user reviews.
Frequency Counter+ Hz FFT is a utility app that uses your iPhone's microphone to analyze audio frequencies. It offers modes for instrument tuning, motor RPM measurement, and mains hum detection.
Frequency Counter+ Hz FFT is available for iPhone and iPod touch devices. It is designed to utilize the microphone capabilities of these Apple products.