In the past, operating two WhatsApp accounts meant using two devices or relying on a phone that supported cloning to enable more than one instance of WhatsApp to run on one device. Helpful for switching between accounts – such as your work and personal – now you no longer need to log out each time, carry two phones or worry about messaging from the wrong place.' 'Today, we’re introducing the ability to have two WhatsApp accounts logged in at the same time.