The reason Psy was chosen and valk is that they are mature in proved them selves without being asked too they didn't just make an app and wait around they acted they proved they are an essential part of the team. The legnth of your app doesn't matter
I dont understand why my chat-mod app didnt come through? I will take Pxsy for example. He wrote one sentence. I wrote like half a page. I know that qunatity doesnt mean quality but I really put work into it. Maybe it is just because I am too young.