Bumble is a dating app that only allows women to initiate contact in opposite-sex connections; in same-sex connections either party may initiate contact. Since 2012, Tinder has been matching singles based on their social profiles and geographic location. Both users must “swipe right” before being matched and are then able to chat within the app.

Mingle2 is a membership service of which users pay to be a part.

The app is available in over 80 countries and has over 27 million searchable members.

Chemistry, a dating site that is part of Match.com, is designed for people who are seeking help in getting to know someone online before meeting them for the first time.

It launched in 1995 and is now available in 24 different countries.

Members set up a profile, upload photos and can then search through profiles to find a good match.

Most dating sites have become extremely good about policing their members for negative or unsafe behavior.

There are several sites that offer additional levels of security including background checks and photo verification.

Some mobile apps will match you with people based on criteria, including age, gender, and geographic proximity.

More traditional sites may offer anything from a simple search to a highly specific advanced search.

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.