Users who have the TikTok app on their phone will still be able to access it after Jan. 19. However, because the ban would prevent Apple and Google from providing the app with necessary updates, TikTok would quickly break down and become unusable, leading Americans to look for an alternative app.

Users of the Chinese social media app RedNote welcomed "TikTok refugees" from the United States with selfies and messages on Wednesday, as Beijing said it encouraged stronger cultural ties with other countries in response to the sudden influx.

Will the TikTok ban deadline in the U.S. be extended? Here's what we know as the new law is set to take effect Jan. 19.

Americans are going to lose access to TikTok in less than a week, unless China green-lights a sale to what Congress has deemed a non-adversary of the United States — something China is unlikely to do but might.

Chinese officials are evaluating a potential option that involves Elon Musk acquiring the U.S. operations if TikTok fails to fend off a controversial ban.