WhatsApp is a messaging app that allows users to communicate with each other through instant messaging, voice calls, and video calls. Here's a brief overview of how it works:

Download and installation: To use WhatsApp, you need to download and install the app on your smartphone or other mobile device.

Account creation: Once the app is installed, you need to create a WhatsApp account using your phone number. This allows FM WhatsApp latest to verify your identity and ensure that you are the only one who can access your account.

Contact syncing: WhatsApp automatically syncs your phone's contacts to your account, so you can easily see which of your friends and family members are already using the app.

Messaging: To send a message, simply select the contact you want to message and type your message into the chat box. You can also add multimedia content such as photos, videos, and voice recordings to your messages.