Android App Bundle
Android App Bundle is a publishing format for Android apps that allows developers to build and deliver optimized APKs for different device configurations. It enables Google Play to generate and serve split APKs (APK splits) tailored to specific device features, screen densities, and languages, reducing app size and improving user experience. This replaces the traditional single APK approach with a modular system.
Developers should use Android App Bundle when publishing apps on Google Play to reduce app size, as it automatically generates split APKs that exclude unused resources for each user's device. It is essential for optimizing app performance, especially for large apps with multiple languages or device-specific assets, and is required for features like Play Feature Delivery and Play Asset Delivery. This helps increase installs by minimizing download sizes and storage usage.