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Tone Generator: Audio Sound Hz

Tone Generator: Audio Sound Hz

Generate Audio Frequency Waves

2.6K ratings
236 reviews
With Ads
🔧 Utilities
🎵 Music
Free
With Ads

Details

Released
March 2, 2017
Updated
October 1, 2026

Features

Developer

TMSOFT
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Tone Generator: Audio Sound Hz screenshot #1 for iPhone
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Tone Generator: Audio Sound Hz screenshot #5 for iPhone
Tone Generator: Audio Sound Hz screenshot #6 for iPhone
iphone
ipad
📌Ready
Reviews summary↘︎
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❓5 answered
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📦~ in 2 weeks
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About

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 tones
✓Frequency range 20Hz - 22,000Hz
✓Instrument tuning
✓Hearing tests
✓Science experiments
✓Audio equipment testing
✓AirPlay support
Show original description

What users say about Tone Generator

Reviews of Tone Generator are mostly positive: the Music app is rated 4.7/5 from 2.6K App Store ratings. What users like most: simple and straightforward, works as expected. Top complaints: ads can interfere with usage, difficulty fine-tuning frequency. Summarized from real user reviews.

Positive things

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

Negative things

  • 🐛Ads can interfere with usage
  • 🔧Difficulty fine-tuning frequency
  • 🔧No amplitude/volume display
  • 🔧Limited functionality
See all reviews

What's New in Tone Generator

5.2

October 1, 2026

- Audio engine improvements - Smoother sleep timer fade - Tablet interface improvements - Various bug fixes and other improvements

More

User reviews

Most RecentHighest RatedLowest Rated

Nice Basic Generator!

Very simple interface, great for just generating a pure (sine wave) tone across the audio spectrum. Quick, easy way to check out the frequency response of your audio system, or your own ears. Use with caution, keeping the volume at a moderate level. Has a nice waveform display, too.
TGThe gufuff

Buggy

No play pause button???
Ssputnik01

First o.k., after updates only modulated signals

First after loading the app did what it should. But now after updates the signals of higher frequencies are still modulated and not pure. Therefore this app is not usable.
KKuepser

Fire update

The update made the app perfect
RReji4321

Response from developer

Thanks for your support all along. We will keep working to provide a good user experience.

I

Super application, je l’utilise presque tous les jours
CCClub retour du chat

Response from developer

Thank you for your encouraging words and 5-star rating!

See 231 more reviews

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User experience

🐞

Reported Bugs

3 issues

Sound cuts out when changing frequency

Bug

No sound output on some devices

Bug

Ads block access to controls

Bug
✨

Requested Features

5 requests

Add frequency sweep/sweep function

Feature

Allow manual frequency input

Feature

Provide volume/amplitude display

Feature

Implement more precise frequency control

Feature

Add timer/sleep function

Feature

FAQ

What does the Tone Generator app do?

This app generates pure sine wave audio tones at frequencies ranging from 20Hz to 22,000Hz. It's designed for various applications like tuning instruments, conducting hearing tests, performing science experiments, and testing audio equipment.

What are the main uses for this tone generator?

Key uses include performing hearing tests to determine the lowest and highest frequencies you can hear, tuning musical instruments like guitars to specific frequencies (e.g., 440 Hz for Low E), conducting science experiments such as finding the resonant frequency of a wine glass, and testing audio systems like subwoofers.

How do I control the audio frequency and volume?

You can adjust the audio frequency by dragging a slider or tapping the plus/minus buttons. The device's volume can be controlled using an on-screen volume slider. Audio playback can be toggled on and off with a Play/Pause button.

Is this app compatible with AirPlay devices?

Yes, the app allows you to specify playing audio to any AirPlay supported device. This extends its utility for testing audio setups or for listening to generated tones on external speakers.

Is the Tone Generator app free to use?

The app is free to use and is supported by advertisements. There are no in-app purchases mentioned, indicating a straightforward ad-supported model.