But eHarmony's survival is far from assured in the crowded $ 2 billion online dating industry: There's Tinder, the free location - based dating juggernaut that claims to match 22 million
people a day, as well as numerous ad - supported and subscription sites that attract
younger users
like OKCupid, Plenty of Fish and
Zoosk, in addition to eHarmony's main competitor, Match.