what is difference in AABs and APKs?
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APKs are simple compressed versions of mobile apps, using which you can directly install any application into your mobile. When you’ll install the APK, your device will extract all the files from it and will present it to you in the form of an application.
Now APKs are all good, but there’s a problem with them, APKs are generally larger in size as they are made to work properly on all devices, and they contain configuration for all. They are good for small-size apps but when you have real applications like WhatsApp or Instagram or any other such apps, they contain a lot of source code and resource files, because of which it becomes difficult to make these work properly on devices with low specs.
But we know all these famous apps work fluently on almost all devices and even consume very low space in storage. So, How? The answer is AABs.
So AABs are a more compact version of the applications, and they are preferred more to distribute the apps. Even the Google Play Store prefers them more. But there’s one thing AABs can not be directly installed. When you start the installation process on AABs, they first convert into APKs with specific device configuration and then the extracting process starts.
Hope this answer will clear your confusion.
APK is a self-contained file format for Android apps, while AAB is an optimized format for Google Play that generates smaller APKs based on device configurations during installation, resulting in improved performance and reduced app size.