The original prototype for Tinder, called 'MatchBox', was built during a hackathon in February 2012 by Sean Rad and engineer Joe Munoz. As of 2021, Tinder has recorded more than 65 billion matches worldwide. In 2020, Tinder had 6.2 million subscribers and 75 million monthly active users. In 2015, Tinder was the fifth highest-grossing mobile app, and in 2019 it surpassed Netflix in annual spending. By 2014, Tinder was registering about one billion daily 'swipes' and reported that users logged into the app on average 11 times a day. Sean Rad founded Tinder in 2012 at a hackathon held at the startup incubator Hatch Labs in West Hollywood. Tinder uses a 'double opt-in' system where both users must like each other before they can exchange messages. In Tinder, users ' swipe right' to like or 'swipe left' to dislike other users' profiles, which include their photo, a short bio, and a list of their interests. Tinder is an online dating and geosocial networking application.
