What Is an APK File?

APK stands for Android Package Kit. It is the file format used to distribute and install applications on the Android operating system. APK files contain all the code, resources, assets, and metadata needed to install an app.

Sideloading

Installing APKs from outside the Google Play Store is called "sideloading." This requires enabling "Install from unknown sources" in Android settings. While sideloading is a legitimate feature, it bypasses Google Play's security checks, so users must verify sources independently.

APK Safety

When downloading APK files, always verify the source, check file hashes when available, and scan with security tools. See our safety guide for details.