This phone locater Android app has been developed by Nine Hertz. With a size of merely 12MB, the app is very easy to install and use.

Once you download this app, you only have to whistle and phone will revert back with your favorite music. The application comes packaged with various notification sounds including discreet, noisy, horrible, revert and a few others.

The ‘Whistle Phone Finder’ app also offers you options to disable the response tone when you are in a situation where your friends are whistling.

To add to the pleasure of using this phone locator app, it is absolutely free and can be downloaded via Google Play.