App Store Optimization (ASO) is a rather recent specialty in the world of digital marketing because never before has the app market swollen to such a size that it’s become possible – and necessary – for businesses to exploit and use definitive marketing factors to bring their app to the top. App store optimization (ASO) is the process of improving the visibility of a mobile app (such as an iPhone, iPad, Android, or Windows Phone app) in an app store. App store optimization is closely related to search engine optimization. According to a report, more than 90% of an average app’s installs are organic. This is where app store optimization services and agencies can help.