With thousands of Android apps added every day, there are lot of poor-quality applications are getting released. The applications are not only worse in terms of  badly-coded monstrosities but also crash often and drain the battery. To manage the issues and take those kind of apps off the top of app lists, Google has overhauled its search and discovery algorithms to take quality into account and downrank bad apples into oblivion.
While the changes implemented in Google Play Store, the Play Store experience is improved and the search giant recommended developers pay close attention to the Android vitals page and pre-launch reports before pushing out updates.
The new ranking algorithm will direct users to apps that experience fewer crashes and use up less battery, leading to improved rankings, user retention, and monetisation, the search giant said in a blog post.
Earlier, popularity could override quality when it comes to an app’s position in the charts and search results — despite low star ratings and negative reviews. The new algorithm will take into account factors such as app crashes, render times, battery usage, and number of uninstalls to determine an app’s ranking. The updated algorithm was rolled out among a small subset of users and will continue to be rolled out across Google’s app stores globally over the next week.
“The change has had a positive impact on engagement — we’ve seen that people go on to use higher quality apps more and uninstall them less,” Google said.
In July, Google began rolling out Play Protect, a new feature part of Google Play designed to scan for apps that may cause harm to an Android device and give the user more information about their device’s security.
Google uses machine learning to scan through 50 billion apps daily to identify any suspicious or malicious malware. Google has checks to prevent malware from entering the Play Store, but sometimes it misses them until notified by third-party malware researchers.

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