With App Highlights, you can browse selected content from Microsoft Store (Marketplace) . You can save your search results for further use, and set preferences for some of the content shown to you. Actual purchasing and downloading content is always done via MSFT Store / Marketplace itself.
This topic is valid for:
Nokia Lumia 900,Nokia Lumia 810,Nokia Lumia 800,Nokia Lumia 710,Nokia Lumia 520