The disclosure is related a method for providing, by a server, a sharing service that enables a plurality of user equipments to share at least one of digital assets. The method may include generating a sharing group for virtually linking a first user equipment with a second user equipment in response to a grouping request message from the first user equipment, creating a virtual data sharing storage in association with the generated sharing group in order to virtually store a predetermined amount of sharing data allowance, in response to a data depositing message from the first user equipment, depositing a first amount of data allowance into the virtual data sharing storage for sharing the first amount of data allowance belonging to the first user equipment with the second user equipment virtually linked to the first user equipment as the same sharing group, and in response to a data withdrawing message from the second user equipment, withdrawing a second amount of data allowance from the sharing data allowance stored in the virtual data sharing storage for using the second amount of the sharing data allowance by the second user equipment.