Create different frequencies, drive insects away or compare your hearing ability with your friends and relatives and share your results! Or watch others straining their ears to find the sounds that cannot locate you. Party fun is guaranteed!

Attention: If you want to share your results with others, first test your audible frequencies, then mark under the speakers your lowest audible tone and your highest audible tone (stored only temporarily). A small hint: the chart will show you what other frequencies of your age are still possible to reach.

What’s New

Version 1.7

-now you can play in background
-intern changes

Ratings and Reviews

3.7 out of 5
55 Ratings
55 Ratings
bcwalnja ,

Limited function, ruined by ads

I wanted to have an app for testing speaker system response, I thought this app would do it. Seemed ok at first, but without paying to unlock, the app is really slim and only has one function - play a tone. Then suddenly a full screen ad took over that I couldn't seem to close without just terminating the app. That's a deal breaker for me. I'll find a better app.

Lae1lae ,

Worth it

I use the tones in this app for when I'm sleeping at night and I've gotten better sleep ever since. Definitely worth purchasing!

hat tack ,

Design flaws

There seems no way to increase the volume or amplitude which a glaring design error. The sign out selection is impossible to access long enough to actually sign out. Selection of controls seems awkwardly designed and counter intuitive.


michael heinz
8.9 MB
Requires iOS 8.0 or later. Compatible with iPhone, iPad, and iPod touch.
English, French, German, Italian, Japanese, Korean, Russian, Simplified Chinese, Spanish
Age Rating
Rated 4+
© 2016 Lifegrit
In-App Purchases
  1. Upgrade to full version 
  2. Extra-Feature 1 $0.99


  • Family Sharing

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

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