A computing device may include: memory storing at least one instruction and at least one processor configured to execute the at least one instruction stored in the memory, wherein at least one processor may be configured to cause the computing device to: obtain a similarity between heterogeneous content based on user-specific heterogeneous content consumption information obtained from category-specific content consumption information, and determine a second content item of a second category different from a first category, as recommended content for a user who has consumed a first content item of the first category, based on the similarity between the heterogeneous content.