[john_max_1]

Read my comment again, I am asking for a single standalone product that's fully incubated inside Facebook and that's successful.

[devnullbrain]

You won't find one because you've given an arbitrary limitation that is contrary to how Meta do business. Threads is not even standalone because it uses the Instagram graph.

[john_max_1]

Every other app that I mentioned and is dead used either Facebook or Instagram graph. None survived.