Best Hz Frequency Measure Apps

227+ iOS apps curated and reviewed

4.4 avg rating
18 free apps
Updated July 2026

Looking for free hz frequency measure apps? 18 of our 227+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Hz Frequency Measure Apps (July 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Frequency Counter+ Hz FFTFrequency Counter+ Hz FFTFree3.7★ (3)YesNoJul 2026
2Decibel Meter Sound DetectorDecibel Meter Sound DetectorFree4.7★ (54K)NoYesJul 2026
3Audio Spectrum Analyzer dB RTAAudio Spectrum Analyzer dB RTAFree4.5★ (3K)NoYesJul 2026
4Frequency AnalyzerFrequency AnalyzerFree4.5★ (97)NoYesJul 2026
5Decibel X:dB Sound Level MeterDecibel X:dB Sound Level MeterFree4.7★ (156K)NoYesJul 2026
6Decibel Meter UltraDecibel Meter UltraFree4.6★ (2.3K)YesYesJul 2026
7Decibel: Sound Level MeterDecibel: Sound Level MeterFree was $2.995.0★ (3)NoYesMay 2026
8Frequency Sound Generator AppFrequency Sound Generator AppFree4.5★ (4.8K)YesYesJul 2026

Top Picks for Hz Frequency Measure

Frequency Counter+ Hz FFT#1

Frequency Counter+ Hz FFT by Kyu-Hee Jang

Tuner · RPM · 50/60Hz Meter
Editor's Choice
🔧 Utilities
3.7(3 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.

Decibel Meter Sound Detector#2

Decibel Meter Sound Detector by Ashraf Thoppukadavil

Track noise around you.
Strong Contender
📊 Productivity
4.7😊(54K 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

Room to Improve

  • 🐛 Ads block settings
  • 🐛 Inaccurate readings
  • 🐛 Not sensitive at all
Audio Spectrum Analyzer dB RTA#3

Audio Spectrum Analyzer dB RTA by Marina Polyanskaya

Sound frequency, decibel meter
Worth Considering
🎵 Music
4.5😐(3K ratings)
FreeIn-App Purchases
Audio Spectrum Analyzer dB RTA screenshot 1
Audio Spectrum Analyzer dB RTA screenshot 2
Audio Spectrum Analyzer dB RTA screenshot 3

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.

What We Love

  • 🚀 Excellent audio analysis tool
  • 👍 Clean and intuitive interface
  • 💡 Customizable frequency range
  • 🔍 Accurate real-time spectrum visualization

Room to Improve

  • 🐛 Compatibility issues with newer iOS versions
  • 🔁 Constant prompts to upgrade to Pro version
  • 🔌 High battery consumption

More Hz Frequency Measure apps to explore

4
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
(97)
free with in-app purchases
5
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
(156K)
free with in-app purchases
6
Decibel Meter Ultra
Decibel Meter Ultra
Decibel Meter Ultra
Noise Level Frequency Analyzer
Free

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.

Precision sound level meteringNoise logging and reportingHearing protection dosimeter
🔧 Utilities
(2.3K)
free with in-app purchases
7
Decibel: Sound Level Meter
Decibel: Sound Level Meter
Decibel: Sound Level Meter
Audio Noise Spectrum Analyzer
Free
$2.99 | 100% OFF

This app provides precise noise measurement with a real-time decibel gauge and a frequency analyzer for detailed acoustic analysis. It tracks minimum, average, and maximum levels, offering historical graphs for sound fluctuations. Ideal for professionals and enthusiasts needing accurate sound monitoring.

Real-time decibel gaugeFrequency analyzer (Hz)Min/Avg/Max decibel values
📊 Productivity
(3)
freemium
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: Healing Sounds
Frequency: Healing Sounds
Frequency: Healing Sounds
Relax, Fall Asleep Fast
Free

This app offers science-inspired sound therapy to promote natural healing and restore balance to your mind, body, and brain. It utilizes specific frequencies to aid in sleep, reduce pain, and enhance mental clarity for a holistic wellness journey.

Full body healing & DNA repairRestorative sleep supportGentle relief for body pain
💪 Health & Fitness
(2.3K)
free with in-app purchases
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
Decibel X PRO: dBA Noise Meter
Decibel X PRO: dBA Noise Meter
Decibel X PRO: dBA Noise Meter
Frequency Spectrum Analyzer
$69.99

This application transforms your device into a professional sound level meter, offering precise dBA and dBC measurements. It features advanced analysis tools like frequency spectrum analysis and data export, making it ideal for audio professionals and anyone interested in sound environments.

Professional sound level meterdBA and dBC measurementsFrequency spectrum analysis (FFT, BAR graphs)
🔧 Utilities
(6.9K)
paid
12
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
13
Tone Generator: Audio Sound Hz
Tone Generator: Audio Sound Hz
Tone Generator: Audio Sound Hz
Generate Audio Frequency Waves
Free

Create pure sine wave audio tones across a wide frequency range. This tool is ideal for tuning instruments, conducting hearing tests, performing science experiments, and testing audio equipment. Easily adjust frequencies and volume, with support for AirPlay devices.

Generate sine wave tonesFrequency range 20Hz - 22,000HzInstrument tuning
🎵 Music
(2.6K)
ad-supported
14
AudioTools, dB, Sound & Audio
AudioTools, dB, Sound & Audio
AudioTools, dB, Sound & Audio
RTA, Acoustics Measurement SPL
$19.99

This professional audio analysis app offers a comprehensive suite of tools for acoustic measurements, including SPL, RTA, and FFT. It calibrates device microphones for accurate results and allows for the addition of powerful optional modules for advanced analysis.

SPL Meter with A/C weightingReal Time Analyzer (RTA)Fast Fourier Transform (FFT) analysis
🎵 Music
(5K)
free with in-app purchases
15
Decibel : dB Noise Level Meter
Decibel : dB Noise Level Meter
Decibel : dB Noise Level Meter
Audio Sound Frequency Analyzer
Free

Measure, analyze, and protect your hearing with this comprehensive sound level meter. It offers real-time decibel readings, noise exposure monitoring, and tools for audio exploration like frequency generation and speaker cleaning.

Real-time sound level measurement (dB)Noise exposure monitoring (Dosimeter)Interactive recording and visualization
🔧 Utilities
(250)
free with in-app purchases
16
432 Hz Converter
432 Hz Converter
432 Hz Converter
Convert Music to 432Hz
Free

Transform your music to healing frequencies like 432Hz and explore alternative tunings. This app offers professional audio conversion with support for various formats, batch processing, and a library to manage your converted files. Discover a more harmonious listening experience.

Professional audio conversionSupport for major audio formatsCustom frequency conversion
🎵 Music
(60)
free with in-app purchases
17
Audio 432 hz
Audio 432 hz
Audio 432 hz
Audio 432 hertz Frequency
Free

Experience the calming effects of 432 Hz audio, a frequency believed to align with natural resonances for improved relaxation and well-being. This app offers various sound durations to aid peaceful sleep and enhance focus.

432 Hz frequency audioPromotes relaxationAids peaceful sleep
💪 Health & Fitness
(7)
ad-supported
18
Generate Frequency Sounds Hz
Generate Frequency Sounds Hz
Generate Frequency Sounds Hz
A Frequency Wave Generator
Free

Generate various sound waves and frequencies with this utility app. It offers single and multi-oscillator modes, binaural beats, and a dedicated test for bass and sub-woofers. Explore ultrasonic sounds and noise generation.

Single oscillator for single frequency wavesMulti-oscillator for multiple sound wavesBinaural beats with carrier and beat frequencies
🔧 Utilities
(13)
ad-supported
19
High Frequency Sounds
High Frequency Sounds
High Frequency Sounds
by Leafgreen
Free

Explore a range of high-frequency sounds, generated by rapid sound wave vibrations. This app can be used to test hearing abilities, as sensitivity to high pitches often decreases with age. Discover how well you or others can perceive these distinct noises.

Listen to high frequency soundsTest hearing abilitiesUnderstand sound wave frequencies
🎬 Entertainment
(33)
free
20
Decibel Pro: Sound Level Meter
Decibel Pro: Sound Level Meter
Decibel Pro: Sound Level Meter
Noise Frequency Analyzer
Free

This application transforms your device into a precise sound level meter. It measures decibels, tracks noise exposure over time, and visualizes data with charts. It adheres to safety standards and allows for calibration and sharing of measurements.

Real-time sound level measurement (dB)Minimum and maximum dB trackingNoise exposure (TWA, Dose) calculation
🔧 Utilities
(59)
free

FAQ about Hz Frequency Measure

What are the best hz frequency measure apps for iPhone?
Frequency Counter+ Hz FFT tops our hz frequency measure apps ranking as of July 2026, with a 3.7-star average from 3 App Store ratings, and it's free to download.
Yes — 18 of the top hz frequency measure apps we rank are free to download, including Frequency Counter+ Hz FFT and Decibel Meter Sound Detector.
Frequency Counter+ Hz FFT shows ads and has no in-app purchases, according to its App Store listing as of July 2026.
We track 227+ hz 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.