The app’s availability in the U.S. has been thrown into jeopardy over data privacy and national security concerns.

That’s at least if you’re in the United States and the legislative ban on TikTok goes forward. Starting Jan. 19, the social media app might be illegal to distribute through app stores like Apple and Google Play as part of the terms set by a federal law President Joe Biden signed this spring.

The Supreme Court justices did not act on a request by TikTok for an emergency injunction against the law, but will instead allow TikTok and ByteDance to make their case on 10 January - nine days before the ban is due to take effect.