WhatsApp is one of the most widely used messaging and video chat apps across the globe. As of January 2020 it had more than 2 billion users. The app works for texts, voice and video calls. What makes it so popular, apart from the fact that it's free, is that its very easy to use.
It uses the contacts that are already stored on your phone. When you pull up any name, you can hit the WhatsApp button to send a text, initiate a voice or video call.
You can use this app to send different types of media files such as .docs, Excel files, photos and other types of media. You can also search for messages from the past using the search bar at the top.
For now, WhatsApp supports group chats of up to 8 participants, and the call quality is crisp and clear.
