iOS download much larger than Android

Hello everyone,

So I have both android and iOS platforms for my Ionic 3 application. The apk for android is about 70mb while the download for the iOS app is over 300mb. Any ideas why this is the case? Is there something that I am failing to clean out?

For android I build prod like this:

ionic cordova build android --release --prod

And for iOS I build prod like this:

ionic cordova build ios --prod

I am really at a loss. It might just be my misunderstanding of how the iOS files are built and what needs to be bundled with them.

Thanks!