TikTok remained unavailable on Apple and Google app stores in the U.S. on Tuesday, a day after President Donald Trump signed an executive order delaying the enforcement of a ban on the popular Chinese-owned short-video app by 75 days.

TikTok faces an uphill battle getting back in app stores, even with Trump's executive order that says he won't enforce the TikTok ban for 75 days.

Apple Inc. and Google removed TikTok from their mobile app stores in the US as required by a law that took effect Sunday, after the social media company’s legal challenges failed to head off the measure passed last year to address national security concerns.