Tinder is a location-based social search mobile app that facilitates communication between mutually interested users, allowing matched users to chat.
The app is most commonly used as a dating app or hookup app, Tinder is among the first "swiping apps", whose users employ a swiping motion to choose photos of other users, swiping right for potentially good matches and swiping left on a photo to move to the next one.
Rad has also stated that Tinder filled a gap for social sites for meeting strangers, rather than connecting with people a user already knows.
By May 2013, Tinder was one of the top 25 social networking apps available on the web based on frequency of use and number of users.
Initially, instead of a swiping motion, users would click on either a green "heart" or red "o Xo" to select or move on from the photos shown.
Using Facebook, Tinder is able to build a user profile with photos that have already been uploaded.
Basic information is gathered and the users' social graph is analyzed.