WhatsApp: it has 430 million active users in 2014
WhatsApp, instant messaging service for mobile smartphones,
It has virtually doubled active users,
rising from 200 million in April 2013 to the current 430 million today,
with a consequent increase in the traffic of messages:
from 20 million in 2013 to 50 million daily.
Data on users of WhatsApp,
They were announced by the CEO of WhatsApp: Jan Koum.
The main competitors of chat services, WhatsApp, are: