Lukoton makes cities more intelligent by offering a smart city access platform that gives service providers access to any building with their phones. No more carrying large keyrings or multiple access tags, no more remembering PIN-codes or collecting keys. Just a phone and a free app or an SDK that can be integrated in service provider's own application. Using phone as a key brings improved efficiency, possibility to make access changes real time, to give and revoke keys any time plus a real time on-line access log. Building managers can manage access to all their buildings without handing out any keys and always know who has opened which door and when. Keys cannot be handed over to others and cannot be copied. Access is checked every time lock is opened. End result: better key security, improved efficiency and overall sense of control.