Since you said "apk", I'm guessing that means that you are planning on using your phone to create the movie. Well, let me tell you, it won't work. At all. If you truly want to make your own videos, the best way is to get a laptop/desktop. There's a lot more video editing software on a computer than on a phone.
Using a computer also helps with the definition of the video.
If you are planning on getting a computer, the "best" software is probably Adobe After Effects, depending on what type of MV you want to create.
Pretty sure the blue ring is either a contact or lighting. And he does wear glasses when he's working on his computer (blue light glasses). As said in his Q&A video.
Thanks. Well looks like I'll be using VPN for a while then
It depends on who it is. If you know their general "title" or "series" per say of their vlogs, gameplays, etc. it will be a lot easier to find.
I've been unable to access it and I'm currently dying in a lot of ways... ;;