In India, an App for Chats and for Keeping Secrets

Excerpt from this article:

Users like Mr. Gohain are flocking to use the app, called Hike, for just that reason: It can keep a secret. In June the free service, which is less than two years old, surpassed 20 million users, making it by far the most popular Indian-made instant messaging system… Indians commonly live with their parents well into their 30s, and it is not unusual for middle-class families in smaller towns to share a single smartphone because of the cost, making privacy still more complicated. Hike’s developers knew those challenges because they had also faced them.