Sonic generates a sine wave tone with easy precise control over the frequency. Swipe your finger up and down anywhere on the screen to raise or lower the tone frequency. Swipe slowly for small frequency adjustments quickly for larger adjustments. 

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Features:

Eject water from device speakers.

Generate tones from 0 to Ultrasonic 25 kHz. 

Remote control Sonic from your Apple Watch.  

Use other apps with Sonic in the background.

Broadcast Sonic to bluetooth and Airplay speakers.