The application plays cat sounds which will make your cat react and play.

Select a sound sample from the list and control it manually by moving your finger (up-down to control the volume and left-right to control the pitch).

You can also let the app control the sounds automatically by turning on the options for up-down, left-right and vibration. A dot will move on the screen showing the sound volume and pitch as its changing. Some cats love to try and catch this dot when it is moving.