Here's How Social App Whisper Has Quietly Become a Marketing Force

CEO Michael Heyward defends his platform

When Secret—a much-hyped "dark social" platform—closed shop in April, media observers assumed websites and mobile apps that offer anonymity were just a fad. Since then, the similarly themed Whisper has proven otherwise, touting more than 10 million users, 10 billion pageviews a month and a whopping 1 million app users every minute.