Whistle Flare is an app designed to help you find your phone if it's lost or misplaced in a particular area say in your office, your house or pretty much anywhere you can misplace your phone.

Whistle Flare uses your phones microphone to detect the sound (whistle) and plays your phones ringtone to alert you of its location.

It's capable of running in the background allowing your phone to detect a whistle even when the screen is off.

Just start the app, activate it, and your set to go. If you happen to forget where you left it, just whistle.