Launched in 2004, OKCupid works with many populations of people.
It is one of the biggest dating sites with over 90 million registered users across the globe. Mingle2 is a membership service of which users pay to be a part.
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.
The app is available in over 80 countries and has over 27 million searchable members.
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.