Samsung Contacts Storage is a built-in application on Samsung mobile devices that stores and manages all of the user's contact information. The application allows users to easily add, edit, and delete contacts, as well as import and export contact information. The Samsung Contacts Storage app synchronizes with other apps, such as the messaging app, so that contacts can be accessed easily when sending text messages or making phone calls. Overall, Samsung Contacts Storage provides a convenient way for Samsung users to organize and manage their contact information on their mobile devices.