Flutter Gesture is described as 'Gesture control using your' and is an app. There are three alternatives to Flutter Gesture for Mac and Windows. The best alternative is The Hand Vu, which is free. Other great apps like Flutter Gesture are Zesture and ControlAir.
ControlAir provides magical touch free control over media applications on your Mac, such as iTunes, Spotify and others. Just raise your finger in the air to control volume, skip songs and pause. A finger raised to your lips will mute the sound.