App store optimization (ASO) is the process of improving the visibility and ranking of a mobile app in an app store, such as Google Play or the Apple App Store. A consultant who specializes in ASO can help app developers and businesses increase the visibility and download rates of their mobile apps by implementing various strategies and techniques to improve their ranking in the app store search results and enhance the overall user experience. Some of the key activities that an ASO consultant might perform include keyword research, title and description optimization, visual design and marketing, and tracking and analyzing app performance data. They may also offer guidance on how to best monetize an app, such as through in-app purchases or advertising.