Hello everyone in today’s life we are using almost many types of electronic things and our life is becoming more and more easy. So, now a days everyone is having a smartphone so for call or messeging off line it cost some money(Rs.) but now everyone get their net pack by recharging and downloading Whatsapp on their smartphone and they start calling or messeging freely and also you can do video call which is very good if you want to sent you picture, audio of your own voice or some song you can sent easily. Whatsapp has given very good features, you can only contact people those who are in your contact list.