A new feature has been added to popular note-taking app Evernote. The functionality in question lets users unlock the application using their fingerprints. Prior to this, the only way of authentication was a four-digit PIN. To access the feature, first make sure you've enabled the passcode lock option (Settings -> Account Info -> Set up passcode lock). Once that is done, the fingerprint authentication option can be found in the "Manage passcode lock" submenu. The feature is currently only available in the beta version of the app, although it should be rolled out to the stable...
Source: http://www.gsmarena.com/evernote_adds_fingerprint_support_in_its_beta_app-news-25778.php