I run a store for web apps called Moon where I personally open every submission before it goes live. After about 95 of these, the first minute almost always decides it, and the reasons apps fail are weirdly consistent. The biggest killer is the link not going to a product. Waitlists, book-a-demo walls, coming soon pages. If I can't use the thing today it isn't live, and this alone kills more submissions than everything else combined. Second is screenshots that are just logos. Your bran...