App Bundle
App Bundle is a publishing format for Android applications that allows developers to package their app's code and resources in a modular way, enabling Google Play to generate optimized APKs for each user's device configuration. It reduces app size by delivering only the necessary components (e.g., language resources, screen densities, CPU architectures) instead of a single universal APK. This format is required for new apps and updates on Google Play since August 2021.
Developers should use App Bundle to reduce app size, improve download speeds, and enhance user experience, especially for apps with multiple languages or device-specific resources. It is essential for publishing to Google Play and supports features like Play Feature Delivery and Play Asset Delivery for modular app distribution. Use cases include large games, international apps, and applications targeting diverse Android devices.