Filename extension | .aab |
---|---|
Type of format | Package format |
Container for | Android |
Open format? | yes |
Website | developer |
Android App Bundle is the Android application publishing file format. The App Bundle must include the application's compiled code and resources, which allows for the signing and generation of APK files to be deferred to the app store, reducing the initial download size of the app. [1] The file extension used for this format is ".aab". [2]
Google Play requires Android App Bundles for all new apps since August 2021 and for all updates to preexisting apps since November 2021. [3] [4] Since May 2023, Android TV requires AABs. [5]
Without Android App Bundles, an APK can support multiple languages, up to four different CPU architectures, and several display resolutions. [6] This meant that each installation file could contain potentially large amounts of bloat irrelevant for a device's specific combination of CPU, locale, and screen size. [6]
Split APKs, which are generated by an app store like Google Play, contain only the code and resources that are needed for the specific device downloading the app. [7] If the user changes their device language or feature set, the app store can then deliver additional split APKs on demand to meet the changed requirements. [8]
Android App Bundles are required for using "play as you download" feature of Google Play, which lets users download and install a portion of the game to start playing and then download the rest while the user is occupied by the first level. [9]
Application streaming is a form of on-demand software distribution. In these scenarios, only essential portions of an application's code need to be installed on the computer: while the end user performs actions in the application, the necessary code and files are delivered over the network as and when they are required.
Android is a mobile operating system based on a modified version of the Linux kernel and other open-source software, designed primarily for touchscreen-based mobile devices such as smartphones and tablets. Android has historically been developed by a consortium of developers known as the Open Handset Alliance, but its most widely used version is primarily developed by Google. First released in 2008, Android is the world's most widely used operating system; the latest version, released on October 15, 2024, is Android 15.
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