Whatsapp Web is an extension of your phone’sWhatsapp messenger. In fact, you cannot use it if your phone’s whatsapp messenger isn’t connected to internet. While the messenger is installed on your phone, whatsapp web is commonly used on your PC via web browser.
The WhatsApp web client uses your phone to connect and send messages – in a sense, everything is mirrored. Your web session stays active as long as your phone has a connection to the internet. This also means that your phone’s data connection is constantly being used.
WhatsApp desktop app and WhatsApp Web are computer based extensions of the WhatsAppaccount on your phone. The messages you send and receive are fully synced between your phone and your computer, and you can see all messages on both devices.