Viber uses a advertisement contest and offering iPhone 5s to be won April 10, 2014 Bring out your creativity & coolness! Create a 30 second Viber Advertisement & email us to win iPhone 5S. #contest — Viber India (@Viber_India) — Viber India (@Viber_India) March 27, 2014 Source: https://twitter.com/Viber_India Read more