Whatsapp Lifeline of Human Era. Review on WhatsApp

I thank the person Brian Acton who created the whatsapp thank you so much. U have saved many rupees of a common man if he dont then we have to send SMS only we need to put the SMS pack to send SMS. Why I choose this app because it is more convineint than SMS & MMS. Both features comes in in this APP where I can send unlimited Messages & Multi Media Messages like Images, Videos. As well as I can Call as well. Where in Sim card this features we dont find it. Also in SMS pack only per day 100 SMS only I can send it to my friends & family memebers where as in whatsapp I can send my desire lengthy messages & conversation. I use Wifi for me its unlimited plan where as in sim card data pack its not available unlimited. I can call to any person in the world from whatsapp to whatsapp & its free where as in sim card if I call to america my god u dont no how much they going to charge per minute. So day by day Whatsapp its a very important part of my life. For Doctors also during operation it is very usefull if they send the operation images & consult to their senior doctors via whatsapp so they could operate the person without doubt on their mind. Its very convinient. Only the negative point on whatsapp is we cant send lengthy videos it has only certain limit may be below 20 mb. 1 app is there which u could send the lengthy video in whatsapp that is whatstools app u need to install it. from the google drive its create a link where a reciever downloads the video or movie bt sure it will take time for the sender as well as receiver if they send movie or video lengthy if they use whatstools. For more upcoming days I hope this feature will be improved in whatsaap & I want another feature how about free video calling as well it will be a great package all in one.