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Best Low Frequency Apps

249+ iOS apps curated and reviewed

4.5 avg rating
19 free apps
Updated August 2026

Looking for free low frequency apps? 19 of our 249+ tracked titles are free to download — no subscription, no trial. The rest are premium picks worth paying for.

Compare top Low Frequency Apps (August 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Frequency: Sound GeneratorFrequency: Sound GeneratorFree4.7★ (340)YesNoAug 2026
2Frequency Sound Generator AppFrequency Sound Generator AppFree4.5★ (4.8K)YesYesAug 2026
3Sonic | Water EjectSonic | Water EjectFree4.7★ (21K)YesYesAug 2026
4Tone Generator: Audio Sound HzTone Generator: Audio Sound HzFree4.7★ (2.6K)YesNoAug 2026
5Frequency Generator: Tone & HzFrequency Generator: Tone & HzFree4.4★ (82)NoYesAug 2026
6Decibel X:dB Sound Level MeterDecibel X:dB Sound Level MeterFree4.6★ (161K)NoYesAug 2026
7Low Frequency DetectorLow Frequency Detector$9.992.8★ (6)NoNoAug 2026
8Frequency Generator - Hz SoundFrequency Generator - Hz SoundFree4.8★ (4)NoYesAug 2026

Top Picks for Low 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
Frequency Sound Generator App#2

Frequency Sound Generator App by Min Ku

High Pitch Sound Generator
Strong Contender
🔧 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

  • 👍 Helpful for tinnitus
  • 🚀 Accurate frequency generation
  • 🎉 Great for meditation and relaxation
  • 💡 Useful for testing speaker systems

Room to Improve

  • 🐛 Difficulty adjusting precise frequencies
  • 🔊 Extremely high frequencies can be painful
  • 🔋 Stops playing when screen is locked
Sonic | Water Eject#3

Sonic | Water Eject by VonBruno LLC

Tone Generator Speaker Cleaner
Worth Considering
🎵 Music
4.7😊(21K 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 Low Frequency apps to explore

4
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
5
Frequency Generator: Tone & Hz
Frequency Generator: Tone & Hz
Frequency Generator: Tone & Hz
Audio Waves: Spectrum Analyzer
Free

Generate sound waves from 1Hz to 40000Hz with various waveforms. Analyze audio frequencies, test hearing, and use for relaxation or speaker cleaning. Offers a sleep timer for peaceful rest.

Multiple waveform generation (Sine, Triangle, Sawtooth, Square)Real-time frequency and sound level analysisHearing test and monitoring
🎵 Music
(82)
freemium
6
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
7
Low Frequency Detector
Low Frequency Detector
Low Frequency Detector
by TOON,LLC
$9.99

This tool measures and analyzes low-frequency sounds that are difficult for the human ear to detect. It helps identify potential noise pollution from sources like construction or factories, providing detailed reports on frequency components and sound levels.

Low-frequency power level measurement (<100Hz)Audible band power level measurement (Leq)1/3 octave band analysis (OCT)
🔧 Utilities
(6)
paid
8
Frequency Generator - Hz Sound
Frequency Generator - Hz Sound
Frequency Generator - Hz Sound
Tone & Waveform Generator
Free

Create audio tones from 1 Hz to 22 kHz with adjustable frequency and waveform. Offers a sleep timer and dark mode. Free users have limited daily uses and waveform options.

Generate tones from 1 Hz to 22 kHzAdjustable frequency and waveformMultiple waveform options
🔧 Utilities
(4)
freemium
9
Frequency Generator - Waves
Frequency Generator - Waves
Frequency Generator - Waves
Binaural Beats, Sound Analyzer
Free

This app generates pure tones and binaural beats for focus, relaxation, or sleep. It also functions as a real-time sound analyzer, identifying musical notes and visualizing sound levels. Save and reuse your favorite settings with a clean, intuitive interface.

Generate pure tones (1 Hz - 20,000 Hz)Create custom binaural beatsReal-time sound frequency detection
🔧 Utilities
(1)
free
10
Frequency Detector Analyzer
Frequency Detector Analyzer
Frequency Detector Analyzer
Spectrum Analyzer EMF Decibel
Free

This application transforms your device into a precise sound analysis tool. It offers real-time frequency detection, visualization, and data logging for musicians, engineers, and curious individuals. Gain clarity and accuracy in understanding the soundscape around you.

Live frequency tunerSpectrogram visualizationAutomatic logging and CSV export
🔧 Utilities
(12)
free with in-app purchases
11
Frequency Generator App
Frequency Generator App
Frequency Generator App
Frequency generator tools
Free
🌟 Lifestyle
(0)
12
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
(75)
free with in-app purchases
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
Frequency Healing Sounds
Frequency Healing Sounds
Frequency Healing Sounds
Frequency sound generator app
Free
💪 Health & Fitness
(0)
15
Speaker Cleaner & Care - Dryzo
Speaker Cleaner & Care - Dryzo
Speaker Cleaner & Care - Dryzo
Reduce Moisture & Sound Test
Free
🔧 Utilities
(0)
16
High Frequency Tones
High Frequency Tones
High Frequency Tones
Generate any frequency
Free

Generate sound waves across a wide frequency range to test hearing limits. Explore potential uses like deterring pests or competing with friends to see who can hear higher pitches. An optional premium upgrade removes ads and unlocks additional waveform options.

Generate sound waves up to 20,000 HzTest human hearing limitsDog whistle functionality
🔧 Utilities
(595)
free with in-app purchases
17
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
(4)
freemium
18
Frequency Calculator
Frequency Calculator
Frequency Calculator
Part of CalCon Calculator
Free
🔧 Utilities
(0)
19
myNIFOG
myNIFOG
myNIFOG
by Andrew White
Free
🔍 Reference
(0)
20
Pure Rituals
Pure Rituals
Pure Rituals
by Pure Rituals
Free
💪 Health & Fitness
(0)

FAQ about Low Frequency

What are the best low frequency apps for iPhone?
Frequency: Sound Generator tops our low 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 — 19 of the top low frequency apps we rank are free to download, including Frequency: Sound Generator and Frequency Sound Generator App.
Frequency: Sound Generator shows ads and has no in-app purchases, according to its App Store listing as of August 2026.
We track 249+ low 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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low frequency detector