The full Zoosk review: Is Zoosk any good in the UK and is signing up worth it? Formerly a Facebook application, Zoosk is now a successful online chat and flirt. I've posted a profile on Zoosk, but haven't paid for a 'subscription'. Chat. We also have a chat, just for us. You first have to register here, then click on this link and join #okchat. . Just another generic shitty dating/ sex app. This is a video dating app with real-time video and text chat that Grindr is the world's largest gay social network, a.k.a. the dating app for gay casual sex. . The people at Zoosk are a romantic bunch whose mission is to help.