App Description
The "teen tormentor" exploits young people's ability to hear very high frequencies, a power which declines once they reach their 20s.
You can increase or decrease the frequency.
13 frequencies between 8khz and 22 khz are available.
The last frequency is memorized.
iPhone Screenshots
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iPad Screenshots
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App Changes
- June 03, 2014 Initial release
- August 11, 2016 Price increase: $0.99 -> $1.99
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