@vivek321
An APK (Android Package Kit) is the file format used to distribute and install apps on Android devices. It contains all the necessary elements for an app to function, including code, resources, assets, and manifest file. Users can download APK files from the Google Play Store or third-party sources. Installing APKs manually allows access to apps not available in certain regions, but it can pose security risks. Always ensure APKs are from trusted sources to avoid malware or data breaches.