Google Play instance of package management system
Catalog content
Android applications
By 2017, Google Play featured more than 3.5 million Android applications. After Google purged a lot of apps from the Google Play Store, the number of apps has risen back to over 3 million Android applications.  As of 2017, developers in more than 150 locations could distribute apps on Google Play, though not every location supports merchant registration. Developers receive 85% of the application price, while the remaining 15% goes to the distribution partner and operating fees. Developers can set up sales, with the original price struck out and a banner underneath informing users when the sale ends. Google Play allows developers to release early versions of apps to a select group of users, as alpha or beta tests. Users can pre-order select apps (as well as movies, music, books, and games) to have the items delivered as soon as they are available. Some network carriers offer billing for Google Play purchases, allowing users to opt for charges in the monthly phone bill rather than on credit cards. Users can request refunds within 48 hours after a purchase.
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