Can I re-download TikTok if it no longer appears in the App Store?

Mac Jim ID wrote:

You can access the web version using Safari. What was the reason you deleted it?

The legal definition of "foreign adversary controlled application" includes Web sites.

The fines appear to be lower for Internet hosting service providers who violate the law than for mobile application store operators who violate it – but they are still ruinous enough. So depending on where TikTok hosts its service, and how dangerously the hosting service likes to live, even the Web version might or might not remain available.