Ionic2 Extension file / OnDemand

Is there a working solution for Ionic2 to use Androids APK extension files, or the On-Demand Resources of iOS?

I stumbled upon

but it seems to be quite outdated, and only covers Android.

The background: We have an app with integrated videos. Around 200MB app size if everything is included, too much for both stores. As far as I can see it, there is either the possibility to use app extension/ondemand files, with the benefit that the data is hosted by the stores. Or to download it locally where it might be accessed/copied by users too easily (videos should not be easily “sharable” as some of them are only accessible after activation.

someone got an idea?