Google plans mass crackdown on Android apps that don't meet these new standards
Briefly

Apps should provide a stable, responsive, and engaging user experience. Apps that crash, lack functionality, or fail to engage users are not allowed on Google Play.
Google aims to target apps with limited functionality (e.g., static apps or apps with little content) and broken functionality (e.g., apps that crash or freeze) in its crackdown on junk apps.
In its effort to clean up the Google Play Store, Google will ban apps that lack functionality, crash frequently, or exhibit abnormal behavior, such as failing to load or being unresponsive.
Read at ZDNET
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