How to get WhatsApp on two phones

For years, one of the biggest bugbears we’ve had with WhatsApp is that you could only use it on one phone at a time. Yes, you could use WhatsApp on additional devices, like your Mac or PC by using WhatsApp Web or WhatsApp Desktop, but you couldn’t use it on two phones at the same time. Instead, you’d have to log out of one phone before you could sign into another, requiring you to back up all your chats. It was a lot of effort and quite frankly, a huge pain.