CNN - Sep 23 - Online dating used to be largely a deskbound activity. But in recent years, mobile apps like Blendr have employed constant Internet access and location-based services to turn the smartphone into a wingman of sorts. Today's mobile location apps connect singles based on the proximity. Grindr has been a global success, with 1.1M daily active users in 192 countries. OkCupid also made its own location-aware app last year called OkCupid Local. Match.com and eHarmony have also gone mobile, but their apps are still more like window shopping. Location data isn't required to make the smartphone useful for meeting people. Smartphone owners can use Bump, a mobile app that lets you exchange contact information easily by bumping two phones together. Bump was an early hit in the iPhone app store and has been downloaded ~100M times.