Abstract: A user terminal providing an in-app service and an in-app service server are provided. The user terminal includes an in-app module configured to be connected to the in-app service server and configured to transmit a multimedia content purchase request, a present request, and a share request to the in-app service server, and a terminal agent installed in an operating system of the user terminal, automatically driven when the user terminal is booted, and operating as a user interface for requesting the in-app service. The in-app service server includes an in-app module interworking unit configured to interwork with an in-app module of a user terminal, and a service controller configured to implement the in-app service when the in-app service is requested.

Abstract: An in-app recommending system is provided. The in-app recommending system includes an in-app module interworking unit configured to periodically collect state information of a particular application having an in-app module from a user terminal in which the in-app module is installed, the in-app module being an application in the form of a component which can be inserted into a plurality of unspecified applications to provide a common service, a user analyzing unit configured to generate recommendation information of multimedia content on the basis of the state information of the particular application, the multimedia content including an application and digital content, and a transmission unit configured to push-transmit the recommendation information to the in-app module of the user terminal.

Abstract: An authoring service system which includes an authoring service controller providing an authoring tool to a user terminal and receiving self-made digital content generated using the authoring tool from the user terminal, a license manager managing license information for each digital content and registering the license information related to the self-made digital content based on information received from the user terminal, and a content provisioner providing the self-made digital content based the license information. In this case, the authoring service system may provide an authoring service by linking to an in-app module installed in the user terminal. In addition, the authoring service system may provide a resale service for the self-made digital content by managing a license.

Abstract: An in-app recommending system is provided. The in-app recommending system includes an in-app module interworking unit configured to periodically collect state information of a particular application having an in-app module from a user terminal in which the in-app module is installed, the in-app module being an application in the form of a component which can be inserted into a plurality of unspecified applications to provide a common service, a user analyzing unit configured to generate recommendation information of multimedia content on the basis of the state information of the particular application, the multimedia content including an application and digital content, and a transmission unit configured to push-transmit the recommendation information to the in-app module of the user terminal.

Abstract: A user terminal providing an in-app service and an in-app service server are provided. The user terminal includes an in-app module configured to be connected to the in-app service server and configured to transmit a multimedia content purchase request, a present request, and a share request to the in-app service server, and a terminal agent installed in an operating system of the user terminal, automatically driven when the user terminal is booted, and operating as a user interface for requesting the in-app service. The in-app service server includes an in-app module interworking unit configured to interwork with an in-app module of a user terminal, and a service controller configured to implement the in-app service when the in-app service is requested.

Abstract: An authoring service system which includes an authoring service controller providing an authoring tool to a user terminal and receiving self-made digital content generated using the authoring tool from the user terminal, a license manager managing license information for each digital content and registering the license information related to the self-made digital content based on information received from the user terminal, and a content provisioner providing the self-made digital content based the license information. In this case, the authoring service system may provide an authoring service by linking to an in-app module installed in the user terminal. In addition, the authoring service system may provide a resale service for the self-made digital content by managing a license.