Whatsapp, Line, Viber, WeChat… we use them everyday without realising just how powerful these messaging apps can be as a tool to market your business. One man who’s realised their true revenue potential is The App Whisperer, Eytan Oren. He talks to us about how he’s used these social media platforms to helps companies, non-profits and even stars like Katy Perry and One Direction maximise their marketing potential, and how you can do it too.