Thanks to Google search on your Android phone, you can not only bring up search results from the web, but also content from apps that are installed on your phone. Soon, however, that capability will be extended to apps you haven't downloaded at all. Google has announced today that thanks to its app indexing efforts, you may now start to see Play Store suggestions in your search results that'll lead to relevant content. So, for example, say you're searching for "Michelin star restaurants" on your phone. You'll not only get the usual search results for that, but also see suggestions for apps like OpenTable or Yelp if you don't already have them installed. If you do install them, the first thing you see when you launch them is a list of, yep, Michelin star restaurants in your area.

http://www.engadget.com/2015/04/16/g...h-app-install/