Janus Lock is the next-generation smart door lock system which enables you to manage your locks and access rights all on your mobile phone. Key features: - Unlock the door with this app, for sure! - History tracking: Who and when unlocks my lock?! - Create and manage the physical 4-key passcodes so you don't even need to pull out your phone. - Share any keys or passcodes to your friends and manage them in a granular level. - Support hardware firmware update to unlock more new features in the future!