2. WhatsApp (1.2 Billion Users)
Landing at number two spot on our list of ’10 Most Widely Used Social Media Platforms In The World’ is instant messaging application WhatsApp with 1 billion active users. It enables users to send text messages, make voice calls, make video calls, send images, GIF, documents, user location, audio files, phone contacts, among others. It was founded by Brian Acton and Jan Koum in the year 2009.