I am using WhatsApp from more than 4 years when I purchased my first smartphone and it is an amazing social media app. It works well even on slow internet connection. Its layout and design are also amazing which attracts everyone to use this messanger only thats why it is number one messenger app. It has all those features which every person needs to contact other person. Its such a great messenger that in sometime corporates are also starting their customer support services through whatsapp only. I just only want to say that WhatsApp is a great messenger.