Whatsapp is one of the most used app on my phone, I use this app all the time to chat with my friends.
I can share pictures as well videos to my frienda which is good, we can call our friends without any cost, so here is pros and cons of whatsapp.
Pros -
Good app for chat with friends, even work on 2G for chat but if we want to download images and videos then we need 3G for best results.
Can create groups which help us to connect with entire users of that group with one click, we now can add upto 500 users to one group.
We can send voice recording to our friends for fast and easy communication.
Cons -
More data consuming app.
addictive app.
Hope my review will help you.