It launched in 1995 and is now available in 24 different countries.
It is one of the biggest dating sites with over 90 million registered users across the globe. OKCupid is one of the most popular dating sites and is free to sign up initially.
It works with special algorithms that match users with potential dates.
It was originally a service called Just Say Hi, but the site transitioned to Mingle2 in 2008 and now works with many populations of singles. It uses a compatibility matching system to link up people with complementary personalities and lifestyles and has worked with millions of users over the past 15 years.
Zoosk is a singles dating app that uses a behavioral matchmaking engine to pair users who its system indicates will be a good match.
Launched in 2004, OKCupid works with many populations of people.