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Best Hertz Frequency Apps

249+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated August 2026

Every iPhone needs a few good hertz frequency 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 Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Frequency: Sound GeneratorFrequency: Sound GeneratorFree4.7★ (340)YesNoAug 2026
2Decibel X:dB Sound Level MeterDecibel X:dB Sound Level MeterFree4.7★ (160K)NoYesAug 2026
3Sonic | Water EjectSonic | Water EjectFree4.7★ (20K)YesYesAug 2026
4Frequency: Healing SoundsFrequency: Healing SoundsFree4.7★ (2.3K)NoYesAug 2026
5Frequency Sound Generator AppFrequency Sound Generator AppFree4.5★ (4.8K)YesYesAug 2026
6VisiWaveVisiWaveFree4.4★ (8)NoNoJul 2026
7HzDetect Music Frequency TunerHzDetect Music Frequency TunerFree5.0★ (1)NoNoJun 2026
8Frequency Counter+ Hz FFTFrequency Counter+ Hz FFTFree3.7★ (3)YesNoAug 2026

Top Picks for Hertz Frequency

Frequency: Sound Generator#1

Frequency: Sound Generator by Lucija Jaksic

Editor's Choice
🔧 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
Decibel X:dB Sound Level Meter#2

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

Frequency Spectrum Analyzer
Strong Contender
🔧 Utilities
4.7😐(160K 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
Sonic | Water Eject#3

Sonic | Water Eject by VonBruno LLC

Tone Generator Speaker Cleaner
Worth Considering
🎵 Music
4.7😊(20K ratings)
FreeAdsIn-App Purchases
Sonic | Water Eject screenshot 1
Sonic | Water Eject screenshot 2
Sonic | Water Eject screenshot 3
Sonic | Water Eject screenshot 4
Sonic | Water Eject screenshot 5
Sonic | Water Eject screenshot 6

This app generates precise sine wave tones to help remove water and debris from your device's speakers. Easily adjust frequencies by swiping on the screen, and enjoy features like Apple Watch control and background operation. Premium subscribers gain access to advanced waveforms, unlimited sessions, and an ad-free experience.

What We Love

  • 🚀 Works great for water ejection
  • 🔧 Effectively removes water from speakers
  • 👍 Saved phones from water damage
  • 💡 Useful for tuning instruments and sound healing

Room to Improve

  • 🔒 Premium features now behind paywall
  • 💰 Subscription model too expensive
  • 🔇 Ads interfere with usability

More Hertz Frequency apps to explore

4
Frequency: Healing Sounds
Frequency: Healing Sounds
Frequency: Healing Sounds
Neural Hz for Calm & Clarity
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
5
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
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
HzDetect Music Frequency Tuner
HzDetect Music Frequency Tuner
HzDetect Music Frequency Tuner
Find the frequency of any song
Free

Instantly discover the tuning frequency of music around you. This app uses song recognition and advanced analysis to reveal if a track is tuned to standard concert pitch or other frequencies, offering a new dimension to your listening experience.

Detect music tuning frequencyShazam-powered song recognitionAnalyze frequency breakdown
🔧 Utilities
(1)
free
8
Frequency Counter+ Hz FFT
Frequency Counter+ Hz FFT
Frequency Counter+ Hz FFT
Tuner · RPM · 50/60Hz Meter
Free

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.

Dominant frequency measurement (Hz)Instrument tuning with note and pitch displayMotor RPM analysis
🔧 Utilities
(3)
ad-supported
9
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
10
Frequency Sound Wave Generator
Frequency Sound Wave Generator
Frequency Sound Wave Generator
Use frequency generator tools
Free

Generate and analyze a wide range of sounds and frequencies. Explore tone generation, sound tests, musical tuning, and create custom sound effects. Visualize sound waves and experiment with different waveforms.

Single and multiple frequency generationMusical notes presetsBinaural beats
🔧 Utilities
(68)
free with in-app purchases
11
Freq'n Awesome Tone Generator
Freq'n Awesome Tone Generator
Freq'n Awesome Tone Generator
Speaker & Audio Test Tones
Free
🔧 Utilities
(0)
12
Frequency Generator
Frequency Generator
Frequency Generator
Hz Tones, Sonic Sound, Healing
Free

Generate precise audio tones for sleep, focus, and relaxation. Explore a wide frequency range, shape waveforms, and access presets like Solfeggio frequencies. An optional Pro upgrade unlocks all features.

Wide frequency range (1 Hz - 22,000 Hz)Multiple waveforms (sine, square, sawtooth, triangle)Background audio playback
🔧 Utilities
(2)
freemium
13
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
14
Spectrum Lab - Audio Analyzer
Spectrum Lab - Audio Analyzer
Spectrum Lab - Audio Analyzer
Frequency Spectrum Analyzer
Free
🎵 Music
(0)
15
Spectral Bands: SDR Client
Spectral Bands: SDR Client
Spectral Bands: SDR Client
RTL-SDR & WebSDR Signal Client
Free
🔧 Utilities
(0)
16
AM_SW Radio
AM_SW Radio
AM_SW Radio
AM-SW-Ham from worldwide rcvrs
Free

Access and stream live radio broadcasts from hundreds of volunteer-run receivers worldwide. Experience shortwave radio reception from 100kHz to 30MHz using AM or SSB modes, as if you were physically at the receiver's location.

Global receiver accessLive audio streamingAM and SSB modes
🔧 Utilities
(1)
free
17
Bunnell HFJV
Bunnell HFJV
Bunnell HFJV
High Frequency Jet Ventilation
Free

This app provides respiratory therapists and medical professionals with quick access to essential resources for operating a specific type of ventilator. It includes setup guides, troubleshooting tips, user manuals, and direct contact information for support.

24/7 Bunnell Hotline accessInstructional videosUser manuals
🏥 Medical
(1)
ad-supported
18
H&I Products
H&I Products
H&I Products
RF Calculator & Visualizer
Free
🔧 Utilities
(0)
19
Frequency Analyzer
Frequency Analyzer
Frequency Analyzer
by RAMAZAN USEN
Free
🔧 Utilities
(0)
20
Frequency Calculator
Frequency Calculator
Frequency Calculator
Part of CalCon Calculator
Free
🔧 Utilities
(0)

FAQ about Hertz Frequency

What are the best hertz frequency apps for iPhone?
Frequency: Sound Generator tops our hertz frequency apps ranking as of August 2026, with a 4.7-star average from 340 App Store ratings, and it's free to download.
Yes — 20 of the top hertz frequency apps we rank are free to download, including Frequency: Sound Generator and Decibel X:dB Sound Level Meter.
Frequency: Sound Generator shows ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 249+ hertz frequency apps on the iOS App Store as of August 2026, ranked by rating, recency, and analysis of real user reviews.
This app generates various sound waves, including sine, square, sawtooth, and triangle, with frequencies ranging from 1Hz to 22000Hz. It allows for visual representation of these sound waves through animation and provides control over volume. It can be used for purposes like testing hearing, speakers, headphones, and as an instrument tuner.
You can generate four types of sound waves: sine, square, sawtooth, and triangle. These can be easily selected from the main menu by tapping on the sound wave icon. Each waveform produces a different sound and animated visual representation.

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