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App Store Apps > Utilities > Frequency Sound Wave Generator
Frequency Sound Wave Generator icon

Frequency Sound Wave Generator

by David Krejci · Utilities · Free
On the App Store since March 2024 · Data updated 2026-10-05
App Store

Frequency Sound Wave Generator is made and published by David Krejci. AppBrain is an independent app data site and isn't affiliated with David Krejci. The app name, icon, screenshots and description belong to David Krejci and are shown as published on the App Store.

AppBrain's verdict

Rating on App Store
4.75
85 ratings
Last updated
September 5, 2026

It doesn't have enough ratings yet to judge what users think.

Rankings

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Also available on Google Play

Frequency Sound Generator icon Frequency Sound Generator
DCZT
4.4
Free
500,000+

Releases

Updates seen on the App Store
Version
4.0.10
Launched
March 2024

No changelog data

User feedback

Ratings and reviews on the App Store

Comments on Frequency Sound Wave Generator for iOS

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Technology

Found in the app by AppBrain
Price
Free
App size
156.7 MB
Content rating
Everyone

Technologies used by Frequency Sound Wave Generator

About the app and developer

About Frequency Sound Wave Generator

Frequency Sound Wave Generator is an utilities app developed by David Krejci.

User Ratings

Frequency Sound Wave Generator is rated 4.75 out of 5 stars. The rating is based on 85 ratings.

App Information

Frequency Sound Wave Generator is freely available from the App Store. The app size is 156.68 MB. The latest version available is 4.0.10. The last update was on September 5, 2026.

Technical Requirements

The app has a content rating of Everyone. The app has been available on the App Store since March 2024.

Developer information for David Krejci

David Krejci

Address:

Frequently asked questions about Frequency Sound Wave Generator

Is Frequency Sound Wave Generator free?

Yes. Frequency Sound Wave Generator is free on the App Store.

Is Frequency Sound Wave Generator still available?

Yes. Frequency Sound Wave Generator is on the App Store, and the last update we saw was on September 5, 2026.

How large is Frequency Sound Wave Generator?

Frequency Sound Wave Generator is 156.68 MB.

Is Frequency Sound Wave Generator suitable for children?

App Store rates the content of Frequency Sound Wave Generator as suitable for everyone.

How do people rate Frequency Sound Wave Generator?

Frequency Sound Wave Generator scores 4.75 out of 5 stars, from 85 ratings on the App Store.

Who made Frequency Sound Wave Generator?

Frequency Sound Wave Generator was developed by David Krejci. It is listed in the utilities category on the App Store.

Share Frequency Sound Wave Generator

Store listing

By David Krejci, from the App Store
Frequency Sound Wave Generator Screenshot 1 of 6
Frequency Sound Wave Generator Screenshot 2 of 6
Frequency Sound Wave Generator Screenshot 3 of 6
Frequency Sound Wave Generator Screenshot 4 of 6
Frequency Sound Wave Generator Screenshot 5 of 6
Frequency Sound Wave Generator Screenshot 6 of 6
Screenshots by David Krejci, from the the App Store listing
Description by David Krejci Written by the developer, not by AppBrain. Click to read.
All frequency sound generator tools in one app! Tone generation, sound tests, musical tuning and many more. This app helps if you are looking for generating sounds in different frequencies, analyzing sound and making sound tests which produce sound waves based on the desired tone.

Frequency sound generator includes user-friendly and very high-quality tone generation tools:
• Single frequency generator
• Multiple frequency tone generation.
• Musical notes presets
• Binaural beats
• SFX sound generator
• Sweep generator.
• Bass/Subwoofer sound test
• DTMF tones
• Metronome
• Noise generator

Features:
• Play sound in background: Play your frequency generation sounds in the background while your app is minimized or your screen is off.
• Export all generated sounds to an audio file that you can share.
• Animated wave in the single oscillator tool.
• Frequency generator effects such as Vibrato (FM), Tremolo (AM), Ring Modulation (RM) and also Pulse Width Modulation (PWM) - for square wave only.
• Noise generator effects such as auto-pan and breathing effect.
• Play up to 15 oscillators at once in the multi oscillator tool.
• Play up to 15 sweep oscillators at once.
• Tap your tempo in metronome.

Commonly used for:
• Make you own experiments with sound generation.
• Testing own hearing. Human ear is capable of hearing frequencies between 20Hz to 20000Hz.
• Use this app as an instrument for playing or producing music.
• Tune your musical instruments with musical notes presets.
• Test speakers for high end (treble) and low end (bass) tones.
• Discover how your audio handles sweeps of frequencies which range from ultrasound to infrasound.
• Relax with binaural beats which play different frequencies in each ear.
• Find a way to mask your tinnitus frequency.
• Or have fun generating random sound effects, different frequencies and exploring all tone generation tools in this app.
• Relax with white noise, brown noise, blue noise, violet noise, grey noise or pink noise playing in the background.

Notes:
• This app supports decimal values as input for frequencies when generating a tone.
• This app makes an animated sound wave which tries to visualize a current frequency.
• There are several waveforms available: sine, square, triangle and sawtooth.
• Clean UI makes navigation simple through the navigation bar or pages where there are more frequency sound generating tools available.
• Customize how the app behaves through settings menu where you can change themes, enable octave buttons, decimal points and more.
• Phone speakers are not high-quality audio sources and may vary in quality. Sometimes a "parasite" noise can be generated by those speakers in very low or high frequencies which don't define the frequency.
• Turn the volume down when creating high frequencies to not cause any discomfort when experimenting with the app.

Privacy policy: https://dczt.dev/eula-terms-of-use.html
Terms of use: https://dczt.dev/app-privacy-policy.html
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