WhatsApp Messenger is a FREE messaging app available for Android,iphone and other smartphones. WhatsApp uses your phone's Internet connection ( as available) to let you message and call friends and family. Switch from SMS to WhatsApp to send and receive messages, calls, photos, videos, documents, and Voice Messages.
Now days WhatsApp has reached 140 crore per month. Out of this, more than 10 crore users joined during the last four months. WhatsApp  created with the aim to empower people in technology and communication. 

Day by day whatsapp is updating with new features ,Now whatsapp upadated to spread fake and spam messages.Now it only available in latest beta version of Whatsapp.You can find forwarded messages by showing "forwarded" on top of the messages.