After Mark Zuckerberg buy WhatsApp, many features are continuously getting upgraded and new features are being introduced.Most of the population have smartphone so user of WhatsApp also. Its just not used to share images or chat with your friends.Now, people uses it for their business purpose also like for fixing an appointment with someone, informing details of work to client, making calls to client oversea absolutely free.Even people promotes their business or products to people via making groups or via message person to person.
So, if you look its just became more than an messaging app, nowadays.
Its really worthy app for everyone.