Apparatus and method of providing photo printing camera application, and photo printing service providing system using shared film

A method of providing a photo printing camera application, comprising:

• providing a photographing user interface including a first region on which an image of a slot to be currently used from a virtual film including multiple slots that store photograph data is output and a second region on which a photograph taken with a camera module is output;
• if photographing is performed through the photographing user interface, assigning the photograph output on the second region to the slot output on the first region and exhausting the slot;
• and
• transmitting a request for photo printing including photograph data for each slot stored in the virtual film to at least one of a photo printing service server, a photo printing provider device, and a photo printing kiosk.

A user device that provides a photo printing camera application, comprising:

• a camera module;
• a communication module;
• a memory that stores a photo printing camera application program configured to perform photographing and photo printing services using a shared film;
• and
• a processor that executes the program stored in the memory,
• wherein upon execution of the photo printing camera application program, the processor provides a photographing user interface that enables photographing with a shared film which is shared with one or more other members and includes multiple slots that individually store photograph data, stores a photograph taken with the camera module in an unused slot among the multiple slots and exhausts the slot, transmits photograph data for each slot stored in the shared film to at least one of a photo printing service server, a photo printing provider device, and a photo printing kiosk which are already interworking with the processor in order for a photograph to be printed for each of the members sharing the shared film, and
• the processor transmits used slot information about an exhausted slot to the photo printing service server whenever a photograph is taken using the shared film, and
• if the processor receives shared information about a slot exhausted when the shared film is used by user devices of the other members from the photo printing service server in real time, the processor synchronizes an exhaustion process for a slot corresponding to the shared information on the shared film.

A photo printing service server interworking with a user device that provides a photo printing camera application using a shared film, comprising:

• a communication module;
• a memory that stores a photo printing service program;
• and
• a processor that executes the photo printing service program,
• wherein upon execution of the photo printing service program, the processor matches each user device that purchases a shared film with user identification information, information about the purchased shared film, and identification information of each member sharing the shared film and stores them, and
• if the processor receives a request for photo printing including photograph data stored in at least some of multiple slots of a shared film from a previously registered user device, the processor checks previously stored identification information of other multiple members for the shared film requested for photo printing, transmits a request for photograph data of the shared film to user devices of the other members based on the checked identification information of the other members, and receives photograph data for each slot used in the shared film from at least one of the user devices of the other members in response to the request for photograph data, and
• when photograph data of all slots in the shared film requested for photo printing are completely received, the processor performs a predetermined photo printing process, and
• the shared film is shared by two or more members and includes multiple slots that individually store photograph data.