No doubt today whats app is a popular application but it is not so good my phone is samsung s duos and whats app is not good to run on this phone.
And when hindi message on whats app or very large message on whats app then it hang the phone many time when the data is above 80 mb then whats app automatically force stop and do not open the whats app and if I use whats app for a long time then it heat the phone too much or automaticaly swich off the phone.