What is Auto React? Auto React is a free tool which helps users to increase Likes/Reactions/Comments on their Facebook posts and Followers/Friend Requests on their Facebook Profile. This tool is usually used by users to increase the reach of their Facebook profile/page posts. Auto React is one of the best exchange systems available and it'll always be. Moreover, its spam free and available 100% free without any charges (Except your data charges). This service will always be free and we'll never ask you to pay for using it.