WhatsApp is an instant messaging and audio/video chat application for smartphones. The PC version of WhatsApp allows you to use your WhatsApp account on your desktop. It displays a QR code to authenticate your identity using your phone. All the messages you sent/receive on PC is synced with your smartphone; you cannot use WhatsApp on PC without synchronizing with your phone.
https://en.freedownloadmanager.org/Windows-PC/WhatsApp-FREE.html
