Well its a chinese made app , as we know tiktok is most downloaded app of all in today times. The main purpose of this app is to entertain ourself by watching some funny, creative and social messaging videos during our free time. Buf at the same time American government also disclose some facts about this app, that is tiktok is used our vital information and stored chinese database this is accepted my tiktok creator itself. So be carefull while using these apps .