Apart from regular text messages and calls, it also allows you to send and receive documents, photos, videos, and voice messages.įollowing are some prominent features of WhatsApp: This app uses any available Internet connection on your phone (including 2G/3G/4G and Wi-Fi) in order to let you send and receive messages as well as call family and friends. It is completely free to use and works on nearly all smartphone models. WhatsApp Messenger is one of the most popular messaging apps available on Google Play.