TikTok's app was removed from prominent app stores on Saturday just before a federal law to ban the popular social media platform was scheduled to go into effect.

The President-elect will decide the ultimate fate of the social media app set to be banned in the U.S. the day before his inauguration.

TikTok went offline in the United States Saturday night, less than two hours before a ban was slated to go into effect.

The law mandates that TikTok be banned in the United States on Jan. 19, unless Chinese company ByteDance divests itself of ownership. Attorneys for TikTok had challenged the law's constitutionality.

In a concurring opinion, Supreme Court Justice Neil Gorsuch wrote, "Whether this law will succeed in achieving its ends, I do not know."

With the ban upheld by the Supreme Court and the Biden administration leaving, TikTok CEO Shou Zi Chew is banking on Trump to save the app in the US.

The Supreme Court upheld the TikTok ban on Friday. Here's what the ruling spells out for the popular app, including what upheld means.

The Supreme Court upheld the law banning TikTok in the U.S. if its Chinese owner, ByteDance, couldn't facilitate a sale.

As TikTok shut down on Saturday, a final message to US users suggested it was relying on President Trump to save the app.

President-elect Donald Trump told ABC News in an interview Saturday he is likely to grant TikTok a 90-day extension to avoid a ban in the United States.

The popular app TikTok has "gone dark" for the 170 million American users following the Supreme Court upholding a law that bans the app in the United States.