Pure is a hookup app. In the developers' own words, "Pure is for when you're looking for an after-dark adventure, not a relationship". The app is based around privacy ,anonymity, and quick discreet hookups. Users upload a selfie and match with another user who appeals to them, and they then enter a chat (up to one hour long) in order to assess whether they like each other and make plans to meet up. After this hour, the conversation is automatically deleted.