Tinder is an iPhone app for finding someone purely based on looks. It's essentially an online dating version of "do, dump, or marry," pulling Facebook profile photos and allowing you to quickly click through them selecting either "like" or "nope." Only pairs who "liked" each other have the option to message and set up a date. With its addictive game format, I'd be hard-pressed to believe that Tinder has a high success rate for actual dates. On the other hand, the app capitalizes on the reality that physical attraction is often key to at least meeting that someone special.