Whats App is the best messaging app I have encountered so far. Imagine how people residing in any part of the world can connect with one another via single app.
This is one of the easiest ways to be in touch with your friends, relatives, neighbours and family. I always share the pictures of our family functions with the relatives residing abroad with so much ease. You can also send and receive videos, text, pics via whats app.
Recent feature of whats app also gives you the facility to call anyone on whats app. Nowadays, I mostly call from whatsapp for free and can talk to my friends or family without any interruption. You no longer need to go for reduced call rate plans, just a good speed internet connection is enough to call anywhere.
Kudos to the developers!