Untappd, the social network for beer lovers, is now available as a free download for Android and iOS. At its core Untappd is a beer rating and recommendation system. Using the service's searchable database of brews you can rate each beer you drink, add a comment, and upload a photo of the brew. The service will recommend similar beers based on your rankings and share your reviews with your contacts.
There is Twitter-like stream of your ratings and a location check-in feature showing you all the beer ratings submitted from your current location (which is a great way to make a decision when presented with a tap list full of breweries you are unfamiliar with). You will unlock badges as you rate beers and check-in at bars, but these features borrowed from other social networks take a back seat to the app's central focus of giving you a place to record which brews you love and ones you're on the look-out for.
If you are a fan of the burgeoning craft brew scene who has been looking for something to replace an Evernote notebook full of pictures of beer labels from your mobile phone, then Untappd is a promising solution that knows beer is supposed to be social.