Apps that exist primarily to download and install other applications, especially without clearly disclosing that behavior before the user installs them, are treated as a distinct malicious pattern separate from ordinary malware.
Often seen in "optimizer" or "cleaner" utility apps whose actual function, once installed, is silently prompting the install of several unrelated apps rather than doing the advertised cleanup.
"Your app's primary function is to download and install other apps without adequately disclosing this behavior, per the Hostile Downloaders policy under Mobile Unwanted Software."
Apps whose main purpose is to download and install other apps, especially without disclosing that behaviour before installation, are treated as a distinct malicious pattern. It is often seen in utility apps such as optimisers or cleaners that, once installed, silently prompt the installation of unrelated software instead of doing what they advertised.
The Play Store is a trusted source of apps, and a downloader that installs other software behind the user's back turns that trust into a distribution channel for unwanted or harmful apps. Such behaviour is often paired with deception about what the app does. The policy separates this pattern from ordinary malware so that apps that serve mainly as installers can be dealt with directly.
Yes, if recommendations are clear, optional and honest.
Google's security service that scans apps for harmful behaviour.
It is a related but separate pattern focused on installing other apps.
Platform rules change often. This page is a plain-language explanation written by AppReviewFix, not official guidance. Check the current Google Play Developer Policy Center for the exact wording.