Undoubtedly, chat apps have become a hot topic of the town and have taken the world by storm in recent years. With 2 billion users accessing the WhatsApp messenger on a monthly bases and projected to generate the revenue of 4.8 billion in 2020, it is safe to say that the chat apps will not go anywhere in future. Monthly active users of the top 3 chat apps including WhatsApp, Facebook Messenger and WeChat have around 4 billion active monthly users.
