Road to App Bundle and Bundletool
What is a App Bundle An Android App Bundle is a new upload format that includes all your app's compiled code and resources, but defers APK generation and signing to Google Play. ... So, users can download apps as large as 500MB and, with dynamic delivery, all of that storage is used for only the code and resources they need to run the app. source: https://developer.android.com/guide/app-bundle Google is actively trying decrease the sizes of apks, first with Multiple APK support . But this was not really a success as most developer should didn't use this feature. With App Bundle it's automatically executed on the background when the App Bundle is uploaded to the play store. This feature is called Dynamic Delivery .For each language, density and ABI (Application Binary Interface) an apk is generated with only the required content. This results in smaller apk's, which result in faster download times and less memory usage. ...