Tinder, an iPhone app, allows users to flip through photos of singles nearby and anonymously express interest in them. If there is a mutual attraction, the app introduces the couple, The app makers say they've connected more than 10 million couples since Tinder was launched in September.


Let's Date is much like Tinder, except it allows users to see what people like, via their Facebook profiles. The iPhone app was released earlier this month.

 

WhatsYourPrice.com, a dating auction website, connects "generous" men with "attractive" women, likening the process to celebrity and firefighter charity auctions. The difference here is the woman gets paid to go on a first date. The company reports that 5,318 San Francisco singles are paying for a first date this Valentine's Day