April 1st '15: New update released with fixes addressing user issues.

Easy to use audio signal generator (frequency generator) that generates audio tones from 1 to 22000 Hz.
Test your phone's speaker headphones subwoofers speakers and amplifiers.
Test your hearing.

Features:
- Variable frequency tone generator
- Sampling rate at 44100 (CD quality)
- 16bit PCM encoding (CD quality)
- Time span selectable
- Presets

Extra features: Anti Mosquito and Dog Whistle (or Cat Whistle).

Anti-Mosquito: the ultrasonic Mosquito repellent generator emits a very unique high frequency sound (ultra sound) that most mosquitoes find distasteful and prevents you from getting bitten by mosquitoes.

Dog Whistle: train your dog to do tricks train your dog to stop barking or if there is a dog next door use this app to make it silent.