Dynamic Feature Modules
Dynamic Feature Modules is an Android app development technique that allows developers to split an app into separate modules that can be downloaded on-demand at runtime, rather than including all features in the initial app installation. This modular approach enables features to be delivered conditionally based on user needs, device capabilities, or other factors, reducing the initial app size and improving user experience. It leverages the Android App Bundle format and Google Play's dynamic delivery system to manage module distribution and installation.
Developers should use Dynamic Feature Modules when building large Android apps where reducing initial download size is critical for user acquisition and retention, such as in markets with limited bandwidth or storage. It's particularly useful for apps with optional features that only a subset of users need, like region-specific content, premium features, or experimental functionality, allowing for more efficient app delivery and updates. This approach also supports advanced use cases like instant apps and conditional feature delivery based on device specifications.