Whatsapp has become the main part of life. I have been using it since 2015. And I use it for almost everything. If we go back and see that when we have to send any info to anyone then we have to send a text message and if we don't have recharge then we can't send. But now it is pretty simple.
Now we can send images, audio, video etc. And can make audio and video call. No worry about privacy. It gives more and more security. As we all know if we express it with worda it can take hours of time.