WhatsApp rolls out 'companion mode' to all Android beta users – XDA Developers

Beta users can now load WhatsApp to multiple Android devices using just one account. If you’ve ever had the dream of running WhatsApp on up to four devices with just one account, that’s finally become a reality thanks to a feature called ‘companion mode’ which is now rolling out to all WhatsApp users in beta. If ‘companion mode’ sounds familiar to you, that’s because it’s been around for quite some time, being spotted in an earlier beta and then rolling out in a limited fashion several months later. While it’s still only available to those in the beta build, the feature’s expansion could signal a public release sometime in the near future. If you’re a frequent WhatsApp user, chances are you’ve tried expanding the app’s capabilities beyond your phone, loading it on your computer or just using it from a desktop browser. If not, it’s actually quite a process. While with most apps it’s just about using the same credentials and logging into the account, WhatsApp is a little different, requiring authentication from the primary device. This involves logging in on the secondary unit and also scanning a QR code with the primary device to get things up and running.
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