Announced today Funimation will be closing both their official website and streaming service on April 2. Here is a source link: https://comicbook.com/anime/news/funimation-site-app-ending-crunchyroll/
For anyone who has the option of doing an account merger, Funimation has added a page which includes the instruction as seen with this link: https://help.funimation.com/hc/en-us/articles/23103586580244-Funimation-End-of-services
So now we have less than 2 months before those two areas will be shut down for good.