TikTok got an apparent reprieve from being forced to shut down, but Americans on Monday were still using and downloading Xiaohongshu, the Chinese social media app that surged in popularity last week in anticipation of TikTok’s closure.

TikTok, owned by the Chinese internet company ByteDance, went dark in the United States ahead of a federal law requiring it to be sold or banned on Sunday. TikTok soon came back online after President-elect Donald J. Trump said he would issue an executive order to put off a ban once he took office on Monday.