A Boolean value that indicates whether the App Store has downloadable content for this product.
- iOS 6.0+
- macOS 10.15+
- Mac Catalyst 13.0+
- tvOS 9.0+
- watchOS 6.2+
You can associate a set of data files with the App Store Connect record you created for a product. The value of this property is
true if at least one file has been associated with the product.