WhatsApp is the best app for communicate with two or more person anyway, it consume low battery power and low data rate.
The layout of this application is very easy to understand with any person.
Now whatsapp is provide many features like-chat, videocalling , calling send photo and others.
with the help of this we share our file , video , pic and now whatsapp provided share location to our friend.
IN whatsapp we create our group and one message is share to many contects with the help of broadcasting and it is very secure and our data is safe to connecting this.
presently it launched mute system to stop anyone messege in 2, 6or one year. Thankyou