Whatsapp allows us to send unlimited message between each other. We can also intercat with each other through vioce call in whatsapp. One if the best thing in this app is we communicate the people around the world it very cheap, very long distance aslo same. Whatsapp is especially popular with end users who do not have Unlimited text messages in addition to basic message. Whatsapp provides group chat and location sharing option also there. There are good privacy settings. There are data usage setting which help you to save your data. You can ever talk in groups. The layout or interface is very simple.