WhatsApp app is very nice app for messaging to any others and anywhere in the world.
I use this app before 5 and 6 years and my experience is very good regarding to WhatsApp.
Concept of WhatsApp is very nice because WhatsApp provide private messaging security and more than.
WhatsApp designing and layout of application is very very nice clean looking very nice and user interface also nice easy to access.
features and functions of WhatsApp is very good like video status sending text messages , video messages and images also and video call also voice calling all over all functions and features of WhatsApp is very good.
Use WhatsApp is sending image messages most important information sending documents video calling and voice calling also conversation.