2. WhatsApp Messenger
One of the largest instant messaging apps in the world
Developer : WhatsApp Inc.
Acquired by Facebook in 2014 for 19.3 billion dollars
Programming Language: Erlang
6. Current
Scenario
1 Billion active users
1.6 million photos shared per
day
42 billion messages sent per
day
53 languages supported1 Billion groups
250 Million videos shared per
day