College students swipe endlessly, juggle multiple chats, and still struggle to turn matches into actual dates. Ditto was ...

Californian start-up Ditto has raised more than $9 million of seed-round funding for a business that aims to shake up the US's dating app market ...

Ditto is an iPhone app reminiscent of Foursquare, but instead of announcing a check-in now, the app lets you tell your friends what you plan to do—then they get to counsel you on how you should do it.