A free program for Android, by App Basic.

A new, easy-to-use, and affordable camera app for Android phones and tablets that lets you capture beautiful photos by simply whistling. No other hardware or software is required. All you need is your Android device with a built-in microphone.

The app is designed to work with the microphone in your Android device. You don’t need to install any additional hardware or software.

In order to capture photos, you need to use the app and whistle on your device. Your device mechanically detects the sound of the whistle and takes a photo.