Whatsapp messenger is a free messaging app available for Android and all the smartphones. The trend of messaging has left back the era of a traditional text (SMS) messaging. Whatsapp was founded By Jan Koum and Brian Acton in 2009. In no time it became popular and in 2014 it was acquired by Facebook. Having the highest user base of around 1.5 billion, and 60 billion messages sent per day. Whatsapp leads, messaging apps worldwide.