IP messaging apps are continuing to gain popularity across the globe. For example, leading online messaging player WhatsApp has increased in size from 200 million users in April 2013 to 900 million in September 2015, and continues to grow. Facebook Messenger meanwhile has 700 million users, and QQ Mobile and WeChat have more than 600 million users each. According to app analytics firm App Annie, total messaging app downloads in 2014 were 53% higher than in the previous year