what makes the App size way too big is the resources folder. check your resources especially the splash images. they contribute almost 85% of the App size. am thinking of the way of using only one splash image for all the device screens. will try this and see.
why i said it’s the resources folder. coz am developing one app, and its build with --prod flag , the app size is 13Mb. but if i extract the .apk, the resource folder is way too big hence the App size.