Do they even have standing? The proposed "ban" is enforced on the app stores, so I could see Google or Apple have standing, if they don't want to be forced to delete an app their users like. Meanwhile tiktok.com will still work in browsers.
(which makes it a bill of attainder, and thus unconstitutional)
(https://en.wikipedia.org/wiki/Nixon_v._General_Services_Admi... might also matter.)
> Finally, the Act did not violate the Bill of Attainder clause of the Constitution because this Act does not convict former President Nixon of a crime and does not expose him to prosecution.
But they could instead just allow people to login on the mobile site and install it as a progressive web app, instead of forcing them to use the app so they can track people better.