The Supreme Court is upholding the law that will ban TikTok if it's not sold to a U.S. company.
The law is set to take effect Sunday.
President-elect Trump is reportedly considering an executive order that would save the popular app.
President Biden has said his administration will not enforce the ban before he leaves office.
Reuters reported TikTok users will be greeted with a pop up message that directs them to a website that has information about the ban starting Sunday.
TikTok denied a Bloomberg report earlier this week that it was considering a sale to billionaire Elon Musk.