Each day, our 150 strong team conceives and creates the entertainment applications of tomorrow Based in France and Germany, Cellfish operates in more than 10 countries , in the areas of music (with Hitster), video (with a package of themed channels), games and mobile personalization services. Cellfish - Ringtones & Games 10 years ago, when we sold our first ringtone , we held the firm belief that mobiles would create a revolution in entertainment .