YouNow is a free live streaming app and website. Users can sign-up for an account to broadcast their own videos or simply watch other users' live broadcasts. The app can be described as a mix between the video sharing site; YouTube and popular live streaming app; Periscope.

The service is available on its website, on Android and iOS apps. As of August 2015, the service handles 150,000 broadcasts each day. The majority of the users of YouNow are under 24 years old.