What is the difference between .apk and .aab (android app bundle)?

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  • Forum posts: 11

Dec 31, 2019, 4:23:08 AM via Website

I just wonder what the actual working process of app bundle is. How does it work in devices in comparison with the APK file?

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  • Forum posts: 63

Dec 31, 2019, 5:28:08 AM via Website

App bundles are publishing format, whereas APK (Android application Package) is the packaging format which eventually will be installed on device. Google uses app bundle to generate and serve optimized APKs for each user’s device configuration, so they download only the code and resources they need to run your app. Therefore, users can get smaller and more optimized downloads.

  • Forum posts: 1,524

Dec 31, 2019, 9:37:07 AM via Website

An apk is a full package for an Android application to be installed on an android device.
But an aab is a file that developers can upload to Google Play to support Dynamic Delivery.

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Jul 26, 2021, 12:50:59 PM via Website

APK has been the go-to distribution app package on Android since its inception. An APK primarily consists of app codes, heavy resources such as image, audio, etc., and an app signing key generated by the developer.

AAB is a container that hosts a base APK and multiple split-APKs. Basically, AAB is a publishing format that a developer submits to the Play Store while APK is the packaging format for Android apps that you install on your device.

  • Forum posts: 4

Sep 16, 2021, 12:36:17 PM via Website

App Bundles also benefit from simpler add-on module loading and enhanced support for large assets such as game content. According to Google, all of this typically results in a 15% reduction in download size, compared to the same app distributed as an APK.