Tinder is a location-based social search mobile app, most often used as a dating site, that allows users to like or dislike other users, and allows users to chat if both parties like each other.
POF, formerly known as PlentyOfFish, is a Canadian online dating service, popular primarily in Canada, the United Kingdom, Ireland, Australia, New Zealand, Brazil, and the United States. It is available in nine languages.
Bumble is a location-based social and dating application that facilitates communication between interested users. In heterosexual matches, only female users can make the first contact with matched male users, while in same-sex matches either person can send a message first.
Grindr is a geosocial networking and online dating application geared towards gay, bi, trans, and queer people. It runs on iOS and Android and is available for download from the Apple App Store and Google Play. Grindr comes in both free and subscription-based versions