WhatsApp is the world's most popular chat app, but it can be daunting if you're new. Here's our guide on how to use WhatsApp!

If you already have an ongoing conversation with someone who's not on your contacts list, you can add them from the app. Here's how to use all three methods of adding people on WhatsApp: ...

Now the latest WhatsApp beta for Android continues in that vein, making it easier to add people to ongoing voice calls.

WhatsApp is rolling out a "Favorites" filter to let you quickly access chats and groups for sending them new messages or making calls.