How Japan's Line proved messaging apps can make money
For all the high-powered wizardry that the phones in our pockets contain, it is perhaps comforting that many of the most popular and lucrative companies that the smartphone age has created revolve around the very human act of conversation.
Facebook, Twitter, WhatsApp and Snapchat, to mention just a handful of the world’s most valuable technology companies, are fundamentally about communication, and have all grown to hundreds of millions of users around the world