views look upon casual sex negatively, individual views on casual sex vary based on personal traits such as autonomy. Religious people and non-religious people mostly have similar feelings when it comes to having casual sex, with a bigger difference in attitude taking place between men and women. Commercial sites Many specialist online dating services or other websites, known as "adult personals" or "adult matching" sites, cater to people looking for a purely sexual relationship without emotional attachments. These can provide a relatively anonymous forum where people who are geographically close but in totally separate work and social circles can make contact. Tinder is a free smartphone dating app that boasts over 10 million daily users, making it the most popular dating app for iOS and Android. In this app, users can either swipe right (which indicates interest) or swipe left (which indicates disinterest) on other users in hopes of matching each other. If both users swipe right on one another, they are a match, and messaging can be initiated between parties. This app is used for a variety of reasons, one of which is casual hookups. Men are more likely than women to use Tinder to seek out casual sexual encounters. This is attributed to men, in comparison to women, placing sexual pleasure at a higher level of importance and using social networking sites to fulfill this need. However, overall, more users are motivated to use it to find romance rather than sex. Despite this, there is a social concern as some believe that the app encourages hookups between users. See also Back-up partner Cottaging Dogging Fornication Group sex Open relationship Promiscuity Sociosexual orientation Treating (dating) References Bibliography Ehrenreich, Barbara, Elizabeth Hess, and Gloria Jacobs. Re-Making Love: The Feminization of Sex. Doubleday, 1986 ()