1.concept of whatsapp is very good I like the concept of the whatsapp and appreciate this also.
2.Layout and design of whatsapp is also too good I am able to transfer my messages very easily.
3.Its features and functions are also too awesome and very nice but the problem is in the chatting and messaging.
4.many of the terrorist uses whatsapp to plant a bomb in cities and kill innocent peoples.
And due to whatsapp there are many fake news were spreading all over the world which makes people unaware of important news.
And due to whatsapp many myths were created like
#Send this message to ten groups and you will find a job# etc. Etc.
Thanks