Hashable debuted a few months ago as an invitation-only social networking service aimed to keep track of introductions made over email or via Twitter. Now, its iPhone app allows new users to invite themselves by simply downloading the app. Previously, in order for Hashable to record an introduction, you had to remember to tweet the contacts' Twitter handles and the #Hashable hashtag. The iPhone app eliminates the need to remember complicated steps and offers three easy ways to connect with others: make an intro (#intro), just met someone new (#justmet), and post a connection (tagged with a hashtag like #lunch or #happyhour).

Find out more after the break.