Listen to various high frequency sounds!

The pitch of a sound is determined by the soundwave frequency. These high frequency sounds are made by fast sound wave vibrations, while slow vibrations create low pitched sounds.

As you age, your hearing abilities decline so that you are less able to hear high pitched sounds. This means that these high pitched sounds are effortlessly heard by young people, but not so easily detected by older generations. Test your hearing (or your parents’ hearing!) with these high frequency noises!

What’s New

Version 1.6

Fixed background image bug that appeared with iOS 11.

Ratings and Reviews

3.6 out of 5
31 Ratings

31 Ratings

10rince ,


It is a great app to prank ur friends at school and just cool like I was walking down the hallway with it on its just funny how the people react at my school to it

leofraize ,

The app works exactly as intended even if you can’t hear it

This app functions exactly as expected, it is absolutely great! The only issue is that I wish the tone buttons on the user interface were in order ie: 9k 10k 11k, etc not 9k 13k 16k, but this doesn’t detract from the app and is a fantastic way to mess with my family. When a lot of people say they can’t hear it, this is true. The app is working, but a lot of people can’t hear these sounds. It simply depends on your ears. Most people over 30 cannot hear anything played on this app and a lot of times people a born with ears that cannot register the sound, the app is working perfectly it is not the apps fault, it yours. Here is a nice video from one of the smartest guys on the internet, at 2:55 he explains how your ears get worse over time and it is harder to pick up these tones

fgbdvebd ,


Some people are saying it doesnt work in their reviews. They just arent young enough to hear it. It really works awesomely.

App Privacy

The developer, Leafgreen, has not provided details about its privacy practices and handling of data to Apple.

No Details Provided

The developer will be required to provide privacy details when they submit their next app update.


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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