Plug and Play: No App required. Easily connect the SD/TF card adapter to your phone/pad. For OS 9.2-12.4 users, please wait for 5-8 seconds after connecting to your device, it will automatically opens the photos app. For OS 13 or up users, click files app or photos app to import. It is convenient and quick to operate. The port of SD card / TF card and USB interface can not be used at the same time.