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No -  Apps are neither crawled and nor indexed by search engines. Backlinks wont be of help As per Android Developer -  "When you develop a great app, Android users show their appreciation through ratings and reviews. They rate your app (out of 5 stars) after downloading it and can post a short description of their experience. When other users are considering your app, they look at the ratings and reviews as key benchmarks of the app’s quality.  Your app’s rating is one of the most important factors influencing its ranking in the various lists and search results in Google Play. It's also one of the key signals that the editorial staff looks for, when curating apps and games for promotion in the store." Refer on Visibility for Google Apps :- http://developer.android.com/distribute/googleplay/about/visibility.html