NYPOST - Mar 1 - The French-based mobile app boasts 13M registered users, up from 10M two months ago. CEO Didier Rappaport said he expects the momentum to continue this year. Rappaport is in New York this week visiting top venture funds about a Series C investing round expected to close in July. So far, Happn has raised $22M. New York City is now Happn's largest US market.