Some magnet schools have a competitive entrance process, requiring an entrance examination, interview, or audition. Other magnet schools select all students who apply or use a lottery system, or a system combining some elements of competitive entrance and a lottery.
As of February 2016, WhatsApp had 1 billion monthly active users, up from April 2015 when the company announced over 800 million MAU. The company's growth in India is also pretty impressive at around 5 million additional MAU per month (60M in Aug '14).
About WhatsApp. Our App. More than 1 billion people in over 180 countries use WhatsApp1 to stay in touch with friends and family, anytime and anywhere. WhatsApp is free2 and offers simple, secure, reliable messaging and calling, available on phones all over the world. 1 And yes, the name WhatsApp is a pun on the phrase What's Up.