Best Hertz Generator Apps

249+ iOS apps curated and reviewed

4.3 avg rating
19 free apps
Updated October 2026

The best hertz generator apps on iPhone average 4.3★ across 249+ titles — we've ranked them by what real users actually keep on their phones. Updated October 2026.

Compare top Hertz Generator Apps (October 2026)

#AppPriceRatingAdsIn-App PurchasesUpdated
1Frequency: Sound GeneratorFrequency: Sound GeneratorFree4.7★ (1.2K)YesNoNov 2026
2Tone Generator: Audio Sound HzTone Generator: Audio Sound HzFree4.7★ (2.6K)YesNoOct 2026
3Frequency Sound Generator AppFrequency Sound Generator AppFree4.5★ (5.2K)YesYesNov 2026
4Frequency Generator: Tone & HzFrequency Generator: Tone & HzFree4.4★ (83)NoYesNov 2026
5Frequency Generator: Hz TonesFrequency Generator: Hz TonesFree4.7★ (23)NoYesNov 2026
6Freq'n Awesome Tone GeneratorFreq'n Awesome Tone GeneratorFree—YesYesSep 2026
7Sonic | Water EjectSonic | Water EjectFree4.7★ (22K)YesYesNov 2026
8Frequency & Tone GeneratorFrequency & Tone GeneratorFree—NoYesOct 2026

Top Picks for Hertz Generator

4.7😊(1.2K 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
  • 🔧 Multiple waveform options (sine, square, triangular, sawtooth)
  • 🎚️ Background operation capability
  • 🎯 Useful for audio calibration and testing
  • ⚡ No popup ads or payment walls

Room to Improve

  • 📢 Intrusive and inappropriate advertisements
  • 🔊 Potential audio damage to speakers/hearing
  • 🔒 Privacy concerns and data collection issues
  • 📱 UI elements off-screen on compact devices
  • 🎚️ Difficult frequency selection with slider
  • 🚫 No AirPlay support
  • ⏸️ App closes when switching to other apps
  • 😤 Pushy review request prompts
Tone Generator: Audio Sound Hz#2

Tone Generator: Audio Sound Hz by TMSOFT

Generate Audio Frequency Waves
Strong Contender
🎵 Music
4.7😊(2.6K ratings)
FreeAds
Tone Generator: Audio Sound Hz screenshot 1
Tone Generator: Audio Sound Hz screenshot 2
Tone Generator: Audio Sound Hz screenshot 3
Tone Generator: Audio Sound Hz screenshot 4
Tone Generator: Audio Sound Hz screenshot 5
Tone Generator: Audio Sound Hz screenshot 6

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.

What We Love

  • 👍 Simple and straightforward
  • 🚀 Works as expected
  • 💡 Useful for testing and tuning
  • 💡 Helps identify hearing range

Room to Improve

  • 🐛 Ads can interfere with usage
  • 🔧 Difficulty fine-tuning frequency
  • 🔧 No amplitude/volume display
  • 🔧 Limited functionality
Frequency Sound Generator App#3

Frequency Sound Generator App by Min Ku

High Pitch Sound Generator
Worth Considering
🔧 Utilities
4.5😊(5.2K 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
  • 🔍 Ability to test hearing range

Room to Improve

  • 🐛 Difficulty adjusting precise frequencies
  • 🔊 Extremely high frequencies can be painful
  • 🔋 Stops playing when screen is locked
  • 📢 Excessive ads
  • 🤔 Mosquito repellent feature not effective

More Hertz Generator apps to explore

FAQ about Hertz Generator

What are the best hertz generator apps for iPhone?
Frequency: Sound Generator tops our hertz generator apps ranking as of October 2026, with a 4.7-star average from 1.2K App Store ratings, and it's free to download.
Yes — 19 of the top hertz generator apps we rank are free to download, including Frequency: Sound Generator and Tone Generator: Audio Sound Hz.
Frequency: Sound Generator shows ads and has no in-app purchases, according to its App Store listing as of October 2026.
We track 249+ hertz generator apps on the iOS App Store as of October 2026, ranked by rating, recency, and analysis of real user reviews.