>building the same app once again because of a bug
>look in the unity editor settings for android
>find "proguard"
>google it, find it might be useful to minify, obfuscate code and other stuff
>try to minify the shit of the app
>original app was 25.1MB
>minified app is 24.6MB
>minified app using "Gradle (Experimental)" is 24.5MB