You really don't have to worry about competition until you get users/customers. For the most part, people copy (or at least pay close attention to) what people

You really don't have to worry about competition until you get users/customers. For the most part, people copy (or at least pay close attention to) what people buy/use. Though, perhaps people prefer to be in stealth mode until they get some traction behind the scenes, to stave off embarrassment. If that's the case, I think being in stealth mode serves a useful purpose.