The difference is:

Bili Bili Animation is a version that has been updated all the time. This version can experience all kinds of new functions and provide a good operating experience.

Bi Li Bi Li Pure White is an officially released stable version, which has not been upgraded. This version will not prompt for updates, and it is suitable for a wider range of Android platforms (the latest version of Bi Li animation requires at least Android 4.0).

There is no difference between the two in the core function of video viewing.