Users are human beings and love visual content so, a promotional video briefly showing the key features of your app helps them down your sales funnel. Think about this as part of your user acquisition strategy, this is the final chance to get them to use your app, where the real magic will happen. In the app world, after the success of the beta tests in App Store with Clumsy Ninja Apple have now included this in iOS 8. Why does it matter to lot for you? In an increasingly competitive market place, App developers will need to add videos for apps or game trailers to increase their visibility and help users hit that "Buy Now" button. The good news is, we're making it affordable. For Android, in Google Play is all about SEO, not just keyword stuffing in iTunes connect after spending hours on SensorTower.com. As Internet Marketers know well: creating a video with a link to your app, hosted on YouTube is a strong SEO link which helps ranking.