OkCupid

OkCupid pioneered data-driven dating long before algorithms became a marketing buzzword, using a vast library of user-answered questions to generate detailed compatibility percentages. Its inclusive approach to gender identity and sexual orientation made it a trailblazer in the LGBTQ+ space as well. While the app has shifted from its open-messaging roots toward a more swipe-centric model, its depth of personality matching remains unmatched among free dating platforms.