Social communication platform Rounds has announced the launch of its Booyah video chat app on iOS. The app was designed to be a companion to WhatsApp, and allows users to make free group video calls with their contacts.Booyah supports video calls for up to 12 users. Once a user begins a call, they can tap a button to invite their WhatsApp contacts into the call. However, the app doesn’t limit itself to just WhatsApp users, as users can invite others to live video chats by sending invite links through email or text message, or posting invite links on Twitter and other platforms. When responding to invites, new users are prompted to downloaded Booyah before joining the call.