VaYou is described as 'The world's first dynamic biofeedback sound machine for your iPhone. It transforms your belly breathing in a dynamically generated sound flow. Simply listening helps you to be more relaxed, relieve stress or sleep better' and is a Meditation tool in the sport & health category. There are more than 25 alternatives to VaYou for a variety of platforms, including iPhone, Android, iPad, Android Tablet and Web-based apps. The best VaYou alternative is Medito, which is both free and Open Source. Other great apps like VaYou are Ice Breath, Inner Breeze, Calm and Serenity.