He&#x27;s clearly not delivering enough value then, or he&#x27;s not focusing on a large enough target audience. He&#x27;s probably also not charging enough. Every single app that I&#x27;ve built has easily grossed &gt;$30-50k each in less than 6 months after launch without having to do significant marketing. And we&#x27;re talking apps built in &lt;30 days.<p>The app store has a massive audience; you need to focus on large enough target groups. How many people use RSS apps these days?<p>Now that I think about it.. I should probably write an ebook on building profitable apps from a developer point of view.