Kik is a cross platform instant messaging application that has hit 100 million users. Kik is adding around 200,000 new users per day too. One of Kik’s largest competitors is WhatsApp, which has over 350 million users. Over 50% of Kik’s user base is in the U.S. According to app analytics company, Distimo, Kik is adding more users in the U.S. than WhatsApp. One of the reasons why Kik is popular is because users do not have to sign up using their phone numbers.