Whatsapp is a messenger that allows people to connect with anyone who has the application on their smartphone. Whatsapp revolutionized communication of the world by bringing chat to the mobile phones, linked to the mobile number, instead of an email id. Remember the pre-WhatsApp era, when communication on chat-based applications was mainly done through computers, and texting at a cost was the only way to communicate if one doesn’t want to call.

It is a chat-based application that also has features for video or audio calling through the web. WhatsApp can be downloaded from the Apple store or Play store. The app is available on the mobile, both Android and iOS, as a web version for the browser, or as a desktop app for the computer. WhatsApp is a free chat messenger for communication with phone numbers linked to the app.