Today all smart phone user can contain whatsapp app.that we see the smart phone can contain this app. because it is very essential app that we can share documents, photos, pdfs etc.to our contacts that will be share with in seconds to our friends we can create a group by adding our friends contacts to that group. we can send pic in that group the all members in that group can able to see our pic. and other one is chatting it is very best app to chat will others the message will sent with in fraction of second to other. we can express our feeling with emojis. we can put status in that. we can edicted to that app all are edicted to that app. this app can edicted by messages. some one are 24 hours using this whatsapp that persons are edicted to that app without whatsapp they can feel vert hard.