https://www.developer-tech.com/news/2019/dec/16/app-developers-may-forced-disclose-foreign-involvement/

The US government is considering forcing app developers to disclose any foreign involvement after a string of concerns about how users' data is being collected.

One notable example is video sharing app TikTok. The app is developed by Beijing-based ByteDance and concerns have been raised about how much user data is being sent back to China.