FAST COMPANY - Mar 26 - Happn, a fast-growing French mobile dating startup, is launching in its second US market today - San Francisco. The app is like a combination of Tinder and Craigslist's missed connections. Happn, which is already live in New York City, Paris, London, Berlin, Barcelona, Sydney, was founded by former Daily Motion COO Didier Rappaport. It boasts 2.5M users worldwide. It offers users a form of digital flirtation called "charms" which they can purchase - 10 charms for $1.99.