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Best Hertz Sound Apps

222+ iOS apps curated and reviewed

4.6 avg rating
20 free apps
Updated June 2026

Looking for free hertz sound apps? 20 of our 222+ tracked titles are free to download β€” no subscription, no trial. The rest are premium picks worth paying for.

Top Picks for Hertz Sound

Frequency: Sound Generator#1

Frequency: Sound Generator by Lucija Jaksic

Editor's Choice
πŸ”§ 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

  • πŸ‘ Simple and easy to use interface
  • 🎡 Accurate frequency generation
  • πŸ’° Free application
  • 🧘 Helpful for meditation and stress relief

Room to Improve

  • πŸ“’ Intrusive and inappropriate advertisements
  • πŸ”Š Potential audio damage to speakers/hearing
  • πŸ”’ Privacy concerns and data collection issues
Sonic | Water Eject#2

Sonic | Water Eject by VonBruno LLC

Water Eject Speaker Cleaner hz
Strong Contender
🎡 Music
4.7😊(19K 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

  • πŸš€ Works great for water ejection
  • πŸ”§ Effectively removes water from speakers
  • πŸ‘ Saved phones from water damage
  • πŸ’‘ Useful for tuning instruments and sound healing

Room to Improve

  • πŸ”’ Premium features now behind paywall
  • πŸ’° Subscription model too expensive
  • πŸ”‡ Ads interfere with usability
Frequency Sound Generator App#3

Frequency Sound Generator App by Min Ku

High Pitch Sound Generator
Worth Considering
πŸ”§ Utilities
4.5😊(4.8K ratings)
FreeAdsIn-App Purchases
Frequency Sound Generator App screenshot 1
Frequency Sound Generator App screenshot 2
Frequency Sound Generator App screenshot 3
Frequency Sound Generator App screenshot 4
Frequency Sound Generator App screenshot 5
Frequency Sound Generator App screenshot 6

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.

What We Love

  • πŸ‘ Helpful for tinnitus
  • πŸš€ Accurate frequency generation
  • πŸŽ‰ Great for meditation and relaxation
  • πŸ’‘ Useful for testing speaker systems

Room to Improve

  • πŸ› Difficulty adjusting precise frequencies
  • πŸ”Š Extremely high frequencies can be painful
  • πŸ”‹ Stops playing when screen is locked

More Hertz Sound 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
πŸ”§ Utilities
(156K)
free with in-app purchases
5
Frequency: Healing Sounds
Frequency: Healing Sounds
Frequency: Healing Sounds
Heal Naturally, Inner Harmony
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
πŸ’ͺ Health & Fitness
(2.3K)
free with in-app purchases
6
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
7
Frequency Healing Sounds Hertz
Frequency Healing Sounds Hertz
Frequency Healing Sounds Hertz
Tone generator, Sound Therapy
Free

This app generates specific sound frequencies and vibrations designed for healing and well-being. Explore tones for pain relief, stress reduction, emotional balance, and spiritual connection. Enhance meditation and promote overall health with targeted sound therapy.

Pain and stress relief frequencies (174 Hz)Tissue and organ healing frequencies (285 Hz)Emotional liberation frequencies (396 Hz)
🌟 Lifestyle
(1.4K)
subscription
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
πŸ”§ Utilities
(36K)
freemium
9
Sonic Pitch Sound Generator
Sonic Pitch Sound Generator
Sonic Pitch Sound Generator
Clear Sound Wave Generator
Free

Generate precise sound waves with adjustable frequencies and various waveform types. Use it for audio testing, insect repulsion, pet training, or as a prank tool. Features include a decibel meter and stereo sound tests.

Adjustable sine, square, triangle, and sawtooth waveformsPrecise frequency control from 0Hz to 25kHzWave visualization
πŸ”§ Utilities
(1.8K)
subscription
10
Show Me Where It Hertz
Show Me Where It Hertz
Show Me Where It Hertz
by Isaac Lyons
Free
πŸ”§ Utilities
(0)
11
Clean Tune - Speaker Cleaner
Clean Tune - Speaker Cleaner
Clean Tune - Speaker Cleaner
Decibel dB Sound Level Meter
Free

This app helps clean your phone's speakers from water with a single button press. It also measures the current noise level and allows you to play sounds of specific frequencies.

Speaker cleaning from waterPlay specific sound frequenciesMeasure current noise level
πŸ”§ Utilities
(8.2K)
freemium
12
NIOSH Sound Level Meter
NIOSH Sound Level Meter
NIOSH Sound Level Meter
by EA LAB d.o.o.
Free

This free app measures sound levels and noise exposure using your smartphone. Developed by acoustics experts, it provides professional-grade metrics and guidance on hearing protection and noise prevention.

Sound level measurementNoise dosimetryHearing hazard information
πŸ”§ Utilities
(16K)
free
13
Decibel Meter Sound Detector
Decibel Meter Sound Detector
Decibel Meter Sound Detector
Track noise around you.
Free

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.

Real-time decibel (dB) readingsFrequency weighting (A, B, C, Z)Share measurements via various apps
πŸ“Š Productivity
(48K)
free with in-app purchases
14
Audio Function Generator
Audio Function Generator
Audio Function Generator
Frequency and Signal Generator
Free

Generate various audio test tones, including sine, square, triangle, and sawtooth waves. Explore frequency and volume sweeps, noise generation, and custom preset creation. Advanced features like extended frequency ranges and multi-tone playback are available with an upgrade.

Generate sine, square, triangle, and sawtooth tonesFrequency and volume sweep generationNoise generation (white, pink, violet, etc.)
πŸ”§ Utilities
(2.1K)
free with in-app purchases
15
Clear Stereo Sound-Clean Wave
Clear Stereo Sound-Clean Wave
Clear Stereo Sound-Clean Wave
Solfeggio frequency, hertz pro
Free

Test and analyze your device's audio output with a variety of sound generation and measurement tools. Explore different frequencies, waveforms, and stereo configurations to ensure optimal sound quality. Includes features for relaxation and noise measurement.

Sound test and checkTone generator (1Hz-22kHz)Sound waveform display (sine, square, triangle)
🎡 Music
(148)
free with in-app purchases
16
Frequency Sound Wave Generator
Frequency Sound Wave Generator
Frequency Sound Wave Generator
Try 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
πŸ”§ Utilities
(66)
free with in-app purchases
17
Healing Frequency Sleep Sounds
Healing Frequency Sleep Sounds
Healing Frequency Sleep Sounds
Binaural Beats,ADHD Brainwaves
Free

This app uses advanced audio technology to create binaural beats designed to improve sleep, enhance focus, reduce anxiety, and promote spiritual exploration. It offers a variety of curated sessions for relaxation, healing, and mood elevation.

Binaural beat music creationSessions for sleep and focusAnxiety reduction and relaxation
🎡 Music
(2.1K)
subscription
18
HEOS
HEOS
HEOS
Get great sound in any room
Free

Control a wide range of connected audio devices from Denon, Marantz, and Definitive Technology. Stream music from online services or local storage, and enjoy true multi-room audio with easy setup and intuitive control.

True multi-room audioQuick and easy setupAccess online music services
🎡 Music
(26K)
ad-supported
19
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
20
Water Eject ~ Speaker Wizard
Water Eject ~ Speaker Wizard
Water Eject ~ Speaker Wizard
#1 Effective Ultra Clear Wave
Free

Generate pure tones, frequencies, and waveforms to test audio equipment like speakers and headphones. Ideal for professionals and enthusiasts seeking to ensure optimal sound quality through customizable frequencies and noise generation.

Tone generationFrequency testingWaveform generation
🎡 Music
(7.5K)
free with in-app purchases

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