How could I see Output Log on my mobile device?

Is there any method or tool enabling me to see the Output Log in mobile device(Android & iOS)? Just like when I am in editor, I can use UE_LOG to log out what I want, then I can see the log in Output Log at runtime.

Where can I see the logs in mobile device at runtime? Thanks a lot for any help!

I have found a video from epic with a useful debugging pipeline : Using UE4 to Develop for Oculus Rift and Oculus Quest | Unreal Fest Europe 2019 | Unreal Engine - YouTube The debugging info starts around 12:15