Whatsapp is totally free app uses data for messaging video calling voice calling etc.
Concept:
Voice or video calling is depending on your internet and you both side must have 4g for video calling.
it has audio messaging feature also.
its updated with end to end encryption.
Whatsapp is widely used by everyone in the world except few countries for security issues on their ip protocol.
Whatsapp is used to text anyone everyone wherever they are. Message will be sent in seconds.
Any images can be shared within seconds.
Any news or rumors can be spreaded easily.
Many jokes and meems are readable when we have so many friends in group.
We can send 10 images or videos at a time.
it has a green layout and easy to use features.
its very useful / helpful in emergency and can be in touch with friends relatives and recieve message instantly and call them.
if you are internet user and need a free message calling app download whatsapp from playstore or ios store