Hi friends,
I am going to share my personal experience about whatsapp.
I have a some points to share with you. The review is maybe helpful for someone.
At first year they provide free service after that they they asked to pay some amount, In India. and also we can not share any documents and files in whatsapp but in other social networking application we can send files also. for example hike messenger. and also hike introduced a new features like we can access without internet but still the facility is not introduced in whatsapp. Apart from that I loved whatsapp very much.
thank you