The app is currently in early access, so you might see some bugs. Download and install the App Bundle Installer from Google Play.Once you've obtained the APK file or an app bundle for the app you need to install, we can move forward to the actual sideloading bit.Īpart from the APKM and XAPK formats, the App Bundle Installer app can also install the official Android App Bundles (AAB). These APKs and app bundles are shared by the developers and community members on XDA forums, and uploaded on third-party resources like APK Mirror, APKPure, or on stores like F-Droid and Amazon. The app bundles pack a base APK file and multiple resource bundles meant for different architectures, layouts, and languages.

The unofficial app bundles come from sites like APKMirror and APKPure, which have created their own app bundles called APKM and XAPK, respectively. One can also covert a standard AAB package to an APK set archive, which uses the. The company is making it mandatory for app developers to publish all new Android apps in AAB in the Google Play store starting August 2021. The official Android app bundle format is AAB and it was introduced back in 2018 by Google. There are two kinds of app bundles - official and unofficial.

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