Last week, Facebook announced a new video calling tool called Messenger Rooms . The tool is built on Facebooks's Messenger platform and is currently accessible via the Facebook and Messenger apps. As of now, Facebook is still testing the feature, so only a select number of users are able to access it. When rolled out, the tool will be available on both iOS and Android, and will be accessible via both mobile and desktop apps and browsers. But why Messenger Rooms when WhatsApp, Instagram, Messenger already offer video calling? Unlike WhatsApp, Messenger, and Instagram , which have a smaller limit to how many people can join a video call simultaneously, Messenger Rooms allows up to 50 people to participate in a call at one time. Also, to use Messenger Rooms, only the creator of the room requires a Facebook account, others can join the video call using a shared link even if they don't have an account on Facebook . Additionally, unlike video calls on Instagram, Whats