Millions online chatting dating site
Initially, instead of a swiping motion, users would click on either a green "heart" or red "X" to select or move on from the photos shown.
As of October 2014, the app was processing over one billion swipes per day, producing about twelve million matches per day.
If two users like each other it then results in a "match" and they are able to chat within the app.
In March 2015, Tinder announced the public release of its paid service, Tinder Plus, a feature allowing unlimited matches, whereas the free Tinder app limits the number of right swipes in a 12-hour period.
In the app's settings, users have the option to type a word that suits their gender identity.