<p>PURPOSE: A robot cleaner system is provided to perform an application function in a robot cleaner by communication between a mobile device and a robot cleaner. CONSTITUTION: A robot cleaner(20) performs communication with a mobile device(10). The mobile device installs a plurality of applications(11) which perform respectively different functions. The mobile device controls the robot cleaner in order to perform an application function. The application of the mobile device utilizes function units of the robot cleaner.</p>
